v0.9.0

Oscar v0.9.0

Diff since v0.8.2

A major change is the renaming of many methods from the form isFOO to is_foo; for example, ispgroup now is called is_pgroups. For the time being, both old and new names are accepted, but in a future Oscar release the old names without the underscore will be dropped. So we recommend adjusting your code to the new names.

Closed issues:

• Allow symbols (and chars???) as arguments to free_group (#659)
• isisomorphic cannot compare all groups (#664)
• Make singular_ring remember the grading? (#886)
• "Replacing docs" warnings (#1061)
• Warnings (?) caused by Serialization / Polymake (#1083)
• Polyhedron intersection performance (#1129)
• Manual: describe how to install Oscar on the start page, resp. link to such a description (#1154)
• Manual: start page has a link to "Introduction" which surprisingly links to "Groups: Introduction" (#1155)
• Nicer syntax for entering permutations (#1189)
• doctest failure in AffinePlaneCurve.jl:225-236 (#1192)
• Add instructions to README.md for using development version (#1193)
• Generators of fraction field (#1195)
• Wanted: discrete logarithm for finite field elements (#1205)
• Conversion of cyclotomics from Oscar to GAP not correct (#1213)
• Map from 0-dim vector space does not work correctly (#1219)
• conversino Oscar-> Gap incomplete... (#1237)
• Failure to install Oscar.jl on a clean macOS 12.3.1 install: can't install gap_packages artifact. (#1254)
• ToricVarieties: Various improvements (#1257)
• ToricVarieties: Use IntegerUnion for code improvement (#1280)
• GC crash while allocating GAP object (#1283)
• Matroid code error (#1284)
• hash problem for QabElem (#1287)
• Oscar matrices over non-commutative rings? (#1293)
• Computation of Galois groups for some polynomials raises UndefVarError (#1323)
• Serialization: don't add UUID to symbols (#1325)
• WARNING: could not import Hecke.homology into Oscar (#1328)

Merged pull requests:

• Prefer setting struct fields by passing them to new (#875) (@fingolfin)
• Start central serialization methods (#1000) (@lkastner)
• Work on triangulations (#1111) (@tbrysiewicz)
• Add sparse multivariate polynomial rings to experimental (#1128) (@lgoe-ac)
• bs/matroids (#1142) (@bschroter)
• ToricVarieties: Towards intersection theory (#1146) (@HereAround)
• Improve the various groups libraries (#1169) (@fingolfin)
• first attempt to isomorphism (#1182) (@ThomasBreuer)
• Basics for tropical curves (#1183) (@lkastner)
• bump singular to 0.10 (#1184) (@tthsqe12)
• Version 0.8.3-DEV (#1185) (@thofma)
• Restore some docstrings for AffAlgHom (#1186) (@thofma)
• small changes (#1187) (@wdecker)
• removed bug in hilbert_series_expanded (#1188) (@wdecker)
• Wrap Singular function minbase for homogeneous ideals (#1191) (@joschmitt)
• Basics of tropical linear spaces (#1194) (@lkastner)
• Allow symbols as arguments to free_group (#1196) (@FriedrichRober)
• Fix stabilizer for "large" permutation groups (#1197) (@fingolfin)
• README.md: add a section on how to contribute (#1198) (@fingolfin)
• Further functionality for affine algebras (#1199) (@wdecker)
• Document serialization, introduce issue and pr templates (#1200) (@lkastner)
• fixed an example for all_small_groups (#1201) (@ThomasBreuer)
• Some tweak for matrix groups code (#1202) (@fingolfin)
• Warn in isnormal & ischaracteristic that they do not check for subgroups (#1203) (@fingolfin)
• Cleanup BiPolyArray definition and constructors a bit (#1204) (@fingolfin)
• Start of wrapper for Julia matrices in GAP. (#1206) (@danielrademacher)
• added character parameters and class parameters (#1207) (@ThomasBreuer)
• ToricVarieties: A few minor changes (#1209) (@HereAround)
• Export cleanup (#1210) (@OguzhanYueruek)
• Rel galois (#1211) (@fieker)
• Tropical Geometry documentation improvement (#1212) (@OguzhanYueruek)
• fixed wrong conductor call (#1214) (@ThomasBreuer)
• More on Hilbert functions (#1215) (@wdecker)
• Start free associative ideals (#1216) (@tthsqe12)
• [CI] add julia 1.8, remove nightly on macos (#1218) (@benlorenz)
• extended multi Hilbert series and other stuff (#1220) (@wdecker)
• Remove local orderings as default_ordering for graded rings (#1221) (@joschmitt)
• various tweaks and poly/number field (#1222) (@fieker)
• Mention community page (#1223) (@lkastner)
• Mention community page + various (#1224) (@lkastner)
• Integrate StraightLinePrograms code (#1225) (@lkastner)
• [CI] reduce job timeout to 2 hours (#1226) (@benlorenz)
• docu snippets for #1191 (#1227) (@wdecker)
• support :indicators and :OD in char. table display (#1228) (@ThomasBreuer)
• Add acting_group(C::GroupConjClass), document some stuff (#1229) (@fingolfin)
• docs: fix cohomCalg:Implementation bib entry (#1231) (@fingolfin)
• Some pedantic docstring tweaks (#1232) (@fingolfin)
• some asserts, some supplements to docu (#1234) (@wdecker)
• Attach topcom directly, serialize toric stuff (#1235) (@lkastner)
• ToricVarieties: Vanishing sets via cohomCalg (#1236) (@HereAround)
• Add conversion from Set{T} to sorted GAP lists (#1238) (@fingolfin)
• Galois cycle (#1239) (@fieker)
• Increase compatbility for halfspace/hyperplane types (#1240) (@alexej-jordan)
• fix missing init (#1241) (@tthsqe12)
• add isomorphism (#1243) (@ThomasBreuer)
• Add coefficient_ring(::MPolyQuo); avoid typeof (#1244) (@fingolfin)
• Change isisomorphic to only return a Bool (#1246) (@fingolfin)
• Improve perfect groups library (#1247) (@fingolfin)
• use new function Singular.LibNormal.isNormal (#1248) (@tthsqe12)
• Subfield lattice (#1250) (@fieker)
• added orthogonal_sign (#1251) (@ThomasBreuer)
• catch a GAP error in invariant_sesquilinear_form (#1252) (@ThomasBreuer)
• cache results of isomorphism (#1253) (@ThomasBreuer)
• admit result GrpAbFinGen for maximal_abelian_quotient (#1256) (@ThomasBreuer)
• Add input validation to some group constructors (#1259) (@fingolfin)
• Code formatting defaults (#1262) (@fingolfin)
• Minor additions and fixes (#1266) (@joschmitt)
• Rename 'Example' section to 'Examples' (#1268) (@fingolfin)
• Improve developer documentation (#1269) (@lkastner)
• small adjustment docu isnormal (#1270) (@wdecker)
• A bug fix and new feature for matroids (#1271) (@bschroter)
• Update to GAP.jl 0.8 (#1272) (@fingolfin)
• [CI] re-enable macos nightly test (#1273) (@benlorenz)
• Rings/mpoly-ideals.jl: ==(I::MPolyIdeal, J::MPolyIdeal), added check for generators before GB computation (#1274) (@YueRen)
• more code and documentation for group characters (#1275) (@ThomasBreuer)
• first step to integrate the group atlas into Oscar (#1276) (@ThomasBreuer)
• Polyhedral geometry/non redundant (#1277) (@alexej-jordan)
• honor --banner=no (and implicitly -q) (#1278) (@lkastner)
• ToricVarieties: Cache rings and ideals (#1279) (@HereAround)
• Enable attribute storing for group products (#1281) (@fingolfin)
• Fix timing bug (#1282) (@lkastner)
• Fix for dual matroids #1284 (#1285) (@bschroter)
• follow-up for pull request #1275 (#1286) (@ThomasBreuer)
• Allow Float as scalar for polyhedra (#1288) (@lkastner)
• Subfield lattice (#1289) (@fieker)
• provide a hash method for QabElem (#1290) (@ThomasBreuer)
• ToricVarieties: More improvements (#1292) (@HereAround)
• Fix 'Oscar.build_doc(;doctest=:fix)' (#1294) (@fingolfin)
• Make doctests faster again (#1298) (@fingolfin)
• Galois doc (#1299) (@fieker)
• rearrange/extend G-set related code (#1300) (@ThomasBreuer)
• provide ZZ(x) and QQ(x) for QabElem (#1301) (@ThomasBreuer)
• Fix bug in loading of polymake objects (#1302) (@lkastner)
• Disable trim_trailing_whitespace in .editorconfig (#1303) (@fingolfin)
• small improvements for group character stuff (#1304) (@ThomasBreuer)
• added iso_oscar_gap(abelian_closure(QQ)) (#1305) (@ThomasBreuer)
• Macro for entering permutations in cycle notation (#1307) (@danielrademacher)
• Start of discrete_log algorithm. (#1308) (@danielrademacher)
• Fix some typos (#1310) (@fingolfin)
• Rename quadratic matrix into square matrix (#1312) (@danielrademacher)
• adjustment multi_hilbert_series, improved docu wrt gradings (#1313) (@wdecker)
• SimplicialComplexes: Propose fix for (co-)homology (#1315) (@lkastner)
• Fix overwritten constructors (#1316) (@fingolfin)
• Enable (de)serialization for arbitrary tuple types (#1317) (@fingolfin)
• Fix "Replacing docs" precompilation warnings (#1318) (@fingolfin)
• add enough stuff to do an AlgCls(Fp) for reps (#1320) (@fieker)
• Add test/Rings/runtests.jl (#1322) (@fingolfin)
• versioninfo: add commit + commit-date (#1324) (@benlorenz)
• Some serialization tweaks (#1326) (@fingolfin)
• PolyhedralGeometry: Improve docstring (#1327) (@lkastner)
• Serialize Symbols; add some tests, minor cleanup (#1329) (@fingolfin)
• Conversions for GrpGen (#1330) (@thofma)
• Update to latest AA/Nemo/Hecke/Singular (#1331) (@fingolfin)
• Adapt to isFOO -> is_FOO changes (#1332) (@fingolfin)
• Experimental MatrixGroup code: remove bad code from <, cleanup (#1333) (@fingolfin)
• Tweak the new @perm macro a bit (#1334) (@fingolfin)
• Resolve #1195 (#1336) (@joschmitt)
• fixed a bug in action_on_blocks (#1338) (@ThomasBreuer)
• TropicalGeometry: underlying polyhedral complex (#1343) (@martapanizzut)
• Adjust ProjEllCrv to EllipticCurve changes (#1344) (@thofma)
• Remove transitive_identification (#1345) (@fingolfin)

v0.8.2

Oscar v0.8.2

Diff since v0.8.1

Closed issues:

• Add build option for ASCII/non-ASCII chars (#318)
• Fix nanosoldier failures / fix loading of GAP package ferret (#652)
• Promotion for finite fields (#960)
• describe for free groups and finitely presented groups (#987)
• msolve crashing for non-real solutions (#1040)
• Group homomorphisms without checks (#1098)
• Graded module morphism inconsistency (#1112)
• Inconsistent definition of irreducible secondary invariants (#1121)
• Implement describe(::GrpAbFinGen) (#1132)
• Wrap IsomorphismSimplifiedFpGroup, SimplifiedFpGroup (#1133)
• Something noisy in the groups code (#1141)
• Can we get the more of the small group database? (#1150)
• iso_oscar_gap for Z/nZ missing (#1170)

Merged pull requests:

• add some eye candy and conversions (#840) (@fieker)
• Adjust doctest for describe(G::GAPGroup) (#948) (@fingolfin)
• scalar/coefficient types in Polyhedral Geometry (#1020) (@alexej-jordan)
• Add option to allow unicode output (#1047) (@thofma)
• Maps from multivariate polynomial rings and quotients thereof (#1048) (@thofma)
• Add the minimal_degree option for irreducible representations (#1069) (@thofma)
• create Oscar groups with context (#1094) (@ThomasBreuer)
• support check for group homom. by images (#1101) (@ThomasBreuer)
• Generalize some method (#1102) (@thofma)
• Version 0.8.2-DEV (#1103) (@thofma)
• Force push when deploying docs (#1105) (@thofma)
• Fix typeof(gens(G)) for matrix groups (#1106) (@fingolfin)
• Spinor norms (#1107) (@simonbrandhorst)
• Thomas breuer tb parent (#1108) (@fieker)
• adjust MapFromFunc related code to changes in Hecke (#1109) (@ThomasBreuer)
• Update localizations and schemes. (#1110) (@HechtiDerLachs)
• Fix Graded module morphism incosistency (see #1112) (#1113) (@AlexD97)
• More fixes to satisfy the incoming MapFromFunc changes (#1114) (@thofma)
• ToricVarieties: Rational functionscharacters, basis of line bundle cohomology and construction of toric varieties from triangulations (#1115) (@HereAround)
• Fix bug with wrong number of arguments in triangulations part. (#1116) (@lkastner)
• More bugs in triangulations. (#1117) (@lkastner)
• Graded module morphism inconsistency (see #1112) (#1120) (@AlexD97)
• add Oscar.versioninfo() function and short technical description of oscar architecture (#1122) (@benlorenz)
• Revise secondary invariants (#1123) (@joschmitt)
• Spinor norms documentation formatting. (#1124) (@simonbrandhorst)
• Dictionaries for caching Gröbner bases w.r.t. different monomial orderings (#1125) (@ederc)
• Docs: Introduction for new developers (#1126) (@lkastner)
• [Do not merge] Fix in Modules for new complexes (#1127) (@AlexD97)
• added a new hom method (#1130) (@ThomasBreuer)
• Bump Hecke to 0.13 (#1131) (@thofma)
• More tests for gradings. Corrections. (#1134) (@wdecker)
• Groups: add type assertions to GAP calls, other tweaks (#1135) (@fingolfin)
• added describe for GrpAbFinGen (#1136) (@ThomasBreuer)
• Improve describe(::GAPGroup) and other group related changes (#1137) (@fingolfin)
• added optional argument check to haspreimage, improved an error message (#1138) (@ThomasBreuer)
• support Oscar.is_unicode_allowed in matrix display (#1144) (@ThomasBreuer)
• set GAP info levels to zero when starting Oscar (#1145) (@ThomasBreuer)
• Wolfram (#1147) (@wdecker)
• Bug fix (#1148) (@fieker)
• msolve v0.2.3 (#1149) (@ederc)
• First version of multivariate Hilbert series and more (#1151) (@wdecker)
• Introduce tropical geometry (#1152) (@lkastner)
• towards a sparse abelian closure, requires Hecke (#1153) (@fieker)
• Temporarily disable printing test for julia master (#1156) (@thofma)
• Convert some Array -> Vector (#1157) (@fingolfin)
• doc: adjust cohomCalg:Implementation bibentry (#1158) (@fingolfin)
• Enable matrix orderings (#1160) (@joschmitt)
• Monomial ordering applications (#1161) (@ederc)
• Sanitize input for triangulation computation. (#1162) (@lkastner)
• support univariate rings in Q(t)[x] (#1163) (@tthsqe12)
• Galois progress (#1164) (@fieker)
• polyhedral geometry: added constructions delpezzo and fano_simplex (#1166) (@micjoswig)
• Adjust localizations to proper types for monomial orderings (#1171) (@joschmitt)
• added iso_oscar_gap, iso_gap_oscar for residue rings (#1172) (@ThomasBreuer)
• Purge AlgHom (#1173) (@thofma)
• Version 0.8.2 (#1174) (@thofma)
• add better sieving in the wreath product case (#1175) (@fieker)
• split singular_ring into singular_coeff_ring and singular_poly_ring (#1176) (@tthsqe12)
• adjusting parts of Docu to new homomorphism type, some asserts (#1177) (@wdecker)
• allow the singular function to convert oscar orderings (#1179) (@tthsqe12)
• init=1 (#1180) (@fieker)
• some more fix (#1181) (@fieker)

v0.8.1

Oscar v0.8.1

Diff since v0.8.0

Closed issues:

• Separate section for number theory (#518)
• GF(p,1) does not work if p is large (i.e., and fmpz) (#590)
• Projective space in in JToric.jl vs. Oscar.jl (#769)
• Release 0.8 todo (#1026)
• adjust doc for toric varieties to OSCAR standard (#1039)
• ToricVarieties: Use properties of Oscar fans (#1055)
• Promotion seems to fail for decorated polynomial rings (#1063)
• Documentation and code forcoefficient_ring(:: AbstractNormalToricVariety) conflict (#1070)
• Don't use naked Vararg (#1072)
• Release Oscar 0.8.1 (#1082)

Merged pull requests:

• ToricVarieties: Faster Stanley-Reisner ideal, (default) coefficient ring, names for homogeneous variables and fmpz-valued rays from polymake (#939) (@HereAround)
• ToricVarieties: Line bundle cohomologies with cohomcalg (#944) (@HereAround)
• add support for Brueckner... (#985) (@fieker)
• ToricVarieties: Implement structure sheaf (#1032) (@HereAround)
• Graph: Add shortest_path_dijkstra (#1041) (@lkastner)
• Start using AbstractAlgebra.@attr (#1049) (@fingolfin)
• Version 0.8.1-DEV (#1053) (@fingolfin)
• Various improvements of toric geometry part (#1054) (@lkastner)
• ToricVarieties: Additions for divisors, divisor classes and tensor products for line bundles (#1056) (@HereAround)
• Add parent check. (#1060) (@HechtiDerLachs)
• Add missing promotion (#1064) (@thofma)
• ToricVarieties/PolyhedralGeometry: Introduce FanLikeType (#1065) (@lkastner)
• added iso_oscar_gap for univar. polyn. rings (#1067) (@ThomasBreuer)
• conversion Oscar -> GAP for finite fields ... (#1068) (@ThomasBreuer)
• changed Oscar.RepPc.reps (#1071) (@ThomasBreuer)
• Fallback to plain GAP if ferret is not available (#1073) (@fingolfin)
• Use @attr some more (#1074) (@fingolfin)
• added documentation for group characters (#1076) (@ThomasBreuer)
• Make hnf less noisy (#1077) (@thofma)
• Secondary invariants (#1078) (@joschmitt)
• Wolfram (#1079) (@wdecker)
• Fix Vararg warning (#1080) (@thofma)
• Add deepcopy for MPolyElem_dec (#1081) (@joschmitt)
• test/ToricVarieties: fix+improve test for Stanley Reisner ideal (#1086) (@benlorenz)
• test ismonomial + small things + suggestions @fingolfin (#1090) (@wdecker)
• Require Hecke >= 0.11.0 (#1091) (@thofma)
• add argument checks for iso_oscar_gap, iso_gap_oscar (#1092) (@ThomasBreuer)
• Use read(io,String) instead of String((read(io)) (#1096) (@fingolfin)
• Use @attr some more (#1097) (@fingolfin)
• ToricVarieties: Code improvements (#1099) (@HereAround)
• Version 0.8.1 (#1100) (@fingolfin)

v0.8.0

Oscar v0.8.0

Diff since v0.7.1

Closed issues:

• Document mpoly stuff (#123)
• Deprecate listperm, instead add constructors (#282)
• Create experimental PR using GroupsCore.jl (#399)
• docs: "introduction" vs "interface" (#515)
• subgroup and sub (#667)
• CI crash in test/Rings/mpoly_affine_algebras_test.jl with Julia 1.7.0-rc1 (#733)
• Remove workarounds in Polytopes after next libpolymake_julia release (#758)
• gap_to_julia (#794)
• Implement simplicial complexes (#829)
• Rename, document and advertise @declare_other and set_special/get_special (#843)
• Missing Base.deepcopy_internal for Group interface (#860)
• Allow FiniteField(fmpz(5),2) and GF(fmpz(5), 2) and GF(fmpz(5), 2, "t") (#863)
• funny spelling of function names in toric geometry section (#877)
• Fix abelian_group to accept fmpz (#884)
• allow ishomogeneous for more types of polynomials (#909)
• vertex-facet incidences for polyhedra (maybe others, too) unnecessarily expensive (#915)
• What to do for object clashes? (#922)
• CI: Codecov for experimental (#963)
• Ideals in generic polynomial rings (#988)
• missing ordering function for graded rings (#989)
• Polynomial build complex does not throw out of bounds error (#991)
• Improve show methods for Toric Line Bundles (#1017)
• README.md example is broken (#1030)

Merged pull requests:

• add a bit more compliant rand methods for GAPGroup (#402) (@kalmarek)
• Add more monomial and module orderings (#723) (@wbhart)
• added character_field (#836) (@ThomasBreuer)
• Cache computed properties for toric varieties (#839) (@HereAround)
• PolyhedralGeometry: Compute triangulations of polytope (#848) (@lkastner)
• Graded modules (#858) (@AlexD97)
• automorphism groups of GrpAbFinGen (#876) (@simonbrandhorst)
• Add PolyhedralComplex as new object (#887) (@lkastner)
• Put most toplevel import/using statements into single file (#892) (@fingolfin)
• Tidy up invariant theory code (#893) (@joschmitt)
• docu modules continued (#904) (@wdecker)
• Localizations of affine algebras and affine schemes (#905) (@HechtiDerLachs)
• Improve some functions for modules (#910) (@AlexD97)
• Bib: add some missing DOIs, minor tweaks (#913) (@fingolfin)
• Start to correct the binomials. (#914) (@tthsqe12)
• Developers Corner (#918) (@alexej-jordan)
• Added the `AutomorphismGroupElem{T} where T' and first methods (#919) (@StevellM)
• First draft of simplicial complexes (#921) (@micjoswig)
• Fix degree computation for filtered rings (#923) (@AlexD97)
• Bump dependencies (#924) (@thofma)
• Improve SubObjectIterator (BoundsError, re-naming, face(t)s) (#925) (@alexej-jordan)
• Improve type stability (#927) (@fingolfin)
• Make use of get_attribute! (#928) (@fingolfin)
• Improvements toric varieties (#929) (@HereAround)
• Torsion form orthogonal group gens (#930) (@simonbrandhorst)
• Use imperative in docstrings, as per Julia guidelines (#931) (@fingolfin)
• Edit especially ugly occurences of is* and n* (#933) (@lkastner)
• Require GAP 0.7.3 (#934) (@fingolfin)
• corrections to docu (#935) (@wdecker)
• Other minor improvements for toric varieties (#940) (@HereAround)
• New properties and attributes for toric line bundles (#941) (@HereAround)
• add accessors and constructors (#942) (@fieker)
• More grading (#943) (@fieker)
• Avoid needs_parentheses (#945) (@fingolfin)
• More work on GAP -> Oscar matrix conversion (#946) (@fingolfin)
• Addressing the issue from #945 (#947) (@HechtiDerLachs)
• Wolfram (#949) (@wdecker)
• PolyhedralGeometry: improve compatibility with fmpz and fmpq types (#950) (@benlorenz)
• Fix conversion of negative GAP integers to fmpz (#951) (@fingolfin)
• Give instructions for how to cite OSCAR (#953) (@fingolfin)
• More G-module (#954) (@fieker)
• Galois (#955) (@fieker)
• Improve show for modules (#956) (@AlexD97)
• Remove obvious zeros from intersection of modules (#957) (@AlexD97)
• Use import.jl [UngradedModules.jl] (#958) (@AlexD97)
• Adjust to recent Hecke changes (#959) (@thofma)
• Introduce Zariski open sets of affine schemes. (#961) (@HechtiDerLachs)
• CI: update codecov/codecov-action to v2 (#962) (@fingolfin)
• add stuff to compute representations for PcGroups (#964) (@fieker)
• use the "new", sparse free_module only for MPoly (#965) (@fieker)
• Add experimental folder to coverage (#967) (@thofma)
• Documentation [UngradedModules.jl] (#968) (@AlexD97)
• More GAP -> Oscar conversions (#969) (@fingolfin)
• add tests for gmodules and move to Experimental (#970) (@fieker)
• first version of schur_index (#971) (@ThomasBreuer)
• Improve type stability/inference (#974) (@fingolfin)
• Improve SimplicialComplex (#977) (@alexej-jordan)
• amendments to #965 (#978) (@wdecker)
• first attempt for iso_gap_oscar (#979) (@ThomasBreuer)
• Resolved max and min bifurcation via the word optimal (#983) (@tbrysiewicz)
• Adjust naming convention and minor cleanup (#984) (@thofma)
• Support MatrixGroup over integer matrices (#992) (@fingolfin)
• Adjust docu to PR #943 and more on graded rings (#994) (@wdecker)
• Mj/simplicial homology (#996) (@micjoswig)
• Delay Singular ring instantiation during ideal generation (#998) (@ederc)
• Improve showing toric varieties (#999) (@lkastner)
• Make parts of the groups code more Julia-ish (#1001) (@fingolfin)
• Fix promotion for graded polynomial rings (#1002) (@thofma)
• next iteration for iso_oscar_gap and iso_gap_oscar (#1004) (@ThomasBreuer)
• added maximal_abelian_quotient (#1007) (@ThomasBreuer)
• Remove Singular dependencies from msolve (#1008) (@ederc)
• Adjust docu to PR #994 (#1009) (@wdecker)
• Allow more graded ops (#1010) (@tthsqe12)
• renamed centre to center (#1011) (@ThomasBreuer)
• Reacting to an old comment by @fingolfin (#1012) (@wdecker)
• improved some assertion messages (#1014) (@ThomasBreuer)
• polyhedral: g- and h-vectors (#1016) (@micjoswig)
• Wolfram (#1018) (@wdecker)
• fixed centre -> center in a test (#1019) (@ThomasBreuer)
• New module type file (see #1013) (#1021) (@AlexD97)
• Added gelfand tsetlin polytope (#1022) (@tbrysiewicz)
• small additions concerning irrationalities (#1024) (@ThomasBreuer)
• Add restriction of codomain for abelian groups (#1025) (@thofma)
• bib: 'Pairs of Generators for Matrix Groups' is now on the arXiv (#1027) (@fingolfin)
• ToricVarieties: Bug fix (#1028) (@HereAround)
• Add etc/update_version.sh script (#1029) (@fingolfin)
• ToricVarieties: Improve show method for toric line bundles (#1031) (@HereAround)
• ToricVarieties: Resolve #922 (#1033) (@lkastner)
• ToricVarieties: Computation of Betti numbers limited to complete, simplicial varieties (#1034) (@HereAround)
• PolyhedralGeometry: Deal with fine and star triangulations. (#1035) (@lkastner)
• support deepcopy_internal for group elements (#1037) (@ThomasBreuer)
• changed compose in src/Groups ... (#1038) (@ThomasBreuer)
• Adjust for GroupsCore conformance tests (#1042) (@fingolfin)
• Replace arbitrary 'authors' list by a generic entry (#1043) (@fingolfin)
• Fix README (#1044) (@thofma)
• Bump version of AA + Nemo + Singular + Hecke (#1045) (@thofma)
• More on gradings (#1046) (@wdecker)
• Remove deprecated function listperm (#1050) (@fingolfin)
• Tag new version 0.8.0 (#1052) (@thofma)

v0.7.1

Oscar v0.7.1

Diff since v0.7.0

Closed issues:

• Add native support for Apple M1 (#546)
• Schemes (#561)
• polymake warning: couldn't run 4ti2: zsolve -q (#691)
• New Oscar release (#802)
• could not initialize the perl interpreter -- julia 1.6.4 on macos (#831)
• PolynomialRing fails on print when trivial (#834)
• Internal stackoverflow julia master + MacOS (#842)
• Error running test suite due to polymake failure (#854)
• ehrhart Polynomials (#896)

Merged pull requests:

• Unify iterators (#798) (@alexej-jordan)
• ToricVarieties: adapt to iterator changes to fix master (#837) (@benlorenz)
• First implementations for line bundles on toric varieties (#838) (@HereAround)
• CI: limit concurrency for PR builds but not for master (#844) (@fingolfin)
• Parametrizing rational plane curves (#846) (@wdecker)
• Don't access R.other directly (#849) (@fingolfin)
• Fix show methods to print to the given io (#850) (@fingolfin)
• Speed up PolyhedralGeometry tests (#852) (@benlorenz)
• move QabElem <-> GAP cyclotomics conversion (#853) (@ThomasBreuer)
• Fix deprecation warning (#855) (@fingolfin)
• Speed up primary invariants test (#857) (@joschmitt)
• Refactor some GAP<->Julia conversions (#859) (@fingolfin)
• Remove 'function' from docstrings (#865) (@fingolfin)
• Use string interpolation in more places (#868) (@fingolfin)
• More GAPWrap for type stability and better performance (#869) (@fingolfin)
• isometry groups of hermitian and quadratic lattices (#870) (@simonbrandhorst)
• Additional functionality requested from various people (#871) (@lkastner)
• docu for free modules (#873) (@wdecker)
• add build scripts. (#874) (@fieker)
• bib entry corrected (#878) (@micjoswig)
• input data fixes for neogb and msolve calls on Apple M1 (#882) (@ederc)
• Remove unconditional @info in msolve (#883) (@thofma)
• Wolfram (#885) (@wdecker)
• get/set_special -> get/set_attribute (#891) (@fingolfin)
• Make ehrhart_polynomial univariate (#897) (@lkastner)
• Tag 0.7.1 (#898) (@thofma)
• CI: run automatically only for master and PRs, add workflow_dispatch for manual CI runs (#899) (@benlorenz)

v0.7.0

Oscar v0.7.0

Diff since v0.6.0

Closed issues:

• supported Julia versions (#80)
• Better feedback when users try to use our packages under Windows (#235)
• Scary but harmless error about ferret binary missing (#283)
• build_doc expects that Documenter, DocumenterCitations, DocumenterMarkdown are installed (#340)
• confusion on the return of collect(permutation group) (#345)
• Constructors for polyhedral objects (#388)
• Oscar doesn't precompile with Julia 1.7.0-beta2 (#504)
• docs: weirdness in navbar with docs included from Hecke (#513)
• docs: why do some filenames have a prefix like ca_, pg_, it_? (#514)
• error installing Ferret: gmp.h not found (#540)
• singular_ring not working for finite prime fields (#564)
• Problems with $ in singular_ring (#574)
• singular_ring woes (#575)
• New binaries with flint 2.8 (#589)
• docs: add a "FAQ" or "Common questions & troubleshooting" section to the manual (#640)
• Something goes wrong with divides in quotient rings (#645)
• AlgebraHomomorphism doesn't seem to copy its own list of generators (#655)
• Add docstring for describe(G::GAPGroup) and add it to the manual (#657)
• (documentation) univariate polynomials: normalise function example (#662)
• Polymake lattice_points not in the documentation? (#663)
• number_moved_points does not know that it returns fmpz (#666)
• Some functionality missing for rings (#672)
• Unifying and streamlining Polytopes interfaces (#677)
• Add IntegerUnion = Union{Integer, fmpz} somewhere (#679)
• convert for GAP.GapObj (#681)
• Invariant ring and polynomial ring with complex coefficients (#687)
• docs: remove reference to Oscar.Integer, Oscar.Rational; update or remove IntegerTypes.svg and RationalTypes.svg (#688)
• Affine way of thinking causes confusion with trivial hyperplane (#715)
• Require Julia >= 1.6 ?! (#716)
• CI tests with Julia nightly fail precompiling Singular.jl (#721)
• CI tests segfault on master with Julia 1.7, nightly, since merge of Modules PR #461 (#735)
• Segfault in libcurl when Download.download is used by GAP.jl (#773)
• Test failures, possible caused by GAP.jl 0.7.1 (#774)
• Allow constructing ideals with no generators (#784)
• Test suite speed regression (#788)
• HomotopContinuation.jl/OSCAR compatibility issue (#792)
• Equality test for zero ideals fails (#795)
• zsolve problems on macOS (#801)
• msolve dependency broken? (#814)

Merged pull requests:

• Modules [WIP] (#461) (@AlexD97)
• Property iterators (#578) (@alexej-jordan)
• Change the presentation of the documentation for plane curves (#592) (@delphinepol)
• Interface to the Singular library Paraplanecurves.lib (#605) (@delphinepol)
• docs: unify filenames (#621) (@fingolfin)
• Combine incidencematrix (#622) (@alexej-jordan)
• docu more concise (#625) (@wdecker)
• Add type assertion to a bunch of isFOO functions (#626) (@fingolfin)
• Simplify VERSION_NUMBER computation (#627) (@fingolfin)
• more information for the non-expert (#628) (@wdecker)
• Update binomial_ideals.jl - symbols for variables given by the user (#630) (@CarloSircana)
• Change default for Qab to use ζ (#631) (@thofma)
• adjusting to #631 (#633) (@wdecker)
• Return isomorphism in isomorphic_matrix_group_over_finite_field (#634) (@thofma)
• Invariant theory (#635) (@joschmitt)
• added textbook references (#637) (@ThomasBreuer)
• more functions documented (#639) (@wdecker)
• Add Molien series for the non-modular case (#641) (@thofma)
• Use bibtool to organize bibliography (#642) (@fingolfin)
• Introduce graphs as Oscar objects (#644) (@lkastner)
• Grade the polynomial ring in an invariant ring (#646) (@joschmitt)
• Fixes divides for quotient rings (#647) (@ederc)
• Fix loading Oscar when offline (#650) (@fingolfin)
• Fix for modular groebner basis (#651) (@thofma)
• Temporarily pin Hecke version in the doc build (#653) (@thofma)
• Fix a problem with MappedWord (#654) (@joschmitt)
• fundamental invariants, invariant rings as affine algebras (#656) (@wdecker)
• Fix #655 (#661) (@thofma)
• Fix Oscar (#665) (@thofma)
• Purge Oscar.Integer (#668) (@thofma)
• Minor change (#669) (@delphinepol)
• Fix type instability in number_moved_points (#670) (@thofma)
• Improve some GAP related code (#671) (@fingolfin)
• Clean up docs/oscar_references.bib (#673) (@fingolfin)
• Added functionalities for non plane curves (#675) (@delphinepol)
• Add some defensive asserts in MPolyQuo* constructors (#678) (@thofma)
• Add conversion from oscar GapGroup and GapGroupElem to GAP.GapObj. (#680) (@FriedrichRober)
• Add IntegerUnion (#686) (@fingolfin)
• Finish the integer purge (#689) (@tthsqe12)
• Remove broken Coveralls integration (#692) (@fingolfin)
• Refactor parts of the groups code (#693) (@fingolfin)
• Add Singular's implementation of King's algorithm (#694) (@joschmitt)
• Reynolds operator and bases of invariant rings (#695) (@joschmitt)
• Fix performance regression (#698) (@thofma)
• Issue/677 (#700) (@lkastner)
• fix typos in orderings (#701) (@fieker)
• Gal qt (#702) (@fieker)
• bump dep versions (#706) (@tthsqe12)
• docs: fix incorrect Pages entries in @contents blocks (#708) (@fingolfin)
• Replace Vector{<:Any} by Vector (#709) (@fingolfin)
• added a helper to convert certain GAP matrices (#710) (@ThomasBreuer)
• Remove CompatHelper, it just creates noise (#711) (@fingolfin)
• Feature/polytopes/new standard constructions (#717) (@OguzhanYueruek)
• first attempt to stabilizer for groups (#718) (@ThomasBreuer)
• added a docstring for describe(G::GAPGroup) (#719) (@ThomasBreuer)
• Require Julia >= 1.6 (#720) (@fingolfin)
• move some code from experimental/GaloisGrp (#724) (@ThomasBreuer)
• first version of GITFans in Oscar (#725) (@ThomasBreuer)
• Merging the code of Polymake/ into Polytopes/ (#726) (@lkastner)
• group characters stuff (#727) (@ThomasBreuer)
• Polymake: bump compat to 0.6 for new polymake version 4.5 (#728) (@benlorenz)
• Update to GAP 0.7 (#729) (@fingolfin)
• Replace many uses of GAP.gap_to_julia (#734) (@fingolfin)
• SubQuo: add type annotation to fix crash with julia 1.7 and nightly (#738) (@benlorenz)
• Import JToric code (#739) (@fingolfin)
• Move docs for sub(G::GAPGroup, elems) into docstring (#740) (@fingolfin)
• Remove hash(::FreeModuleElem), already in AA 0.22.2 (#741) (@fingolfin)
• Drop unused Requires.jl dependency (#742) (@fingolfin)
• start docu for monomial orderings (#743) (@wdecker)
• First draft for FAQ, style guide, diffs to other systems (#744) (@fingolfin)
• Toric variety structs (#745) (@lkastner)
• Introduce Cyclic Quotient Singularities (#746) (@lkastner)
• Polytopes: Minor improvements (#747) (@lkastner)
• Documentation for strong Gröbner bases over the integers (#748) (@ederc)
• Use IncidenceMatrix for PolyhedronOrConeIterator (#749) (@alexej-jordan)
• fixed QabElem, improved printing of char. tables (#752) (@ThomasBreuer)
• overhaul after implementing King's algorithm (#754) (@wdecker)
• Extended toric functionality (#755) (@HereAround)
• unified docu of quotient rings and affine algebras into affine algebr… (#757) (@wdecker)
• move functions into Hecke for this branch (#759) (@fieker)
• Kemper's algorithm for primary invariants of minimal degree (#761) (@joschmitt)
• Refactor order(::MatrixGroup) (#762) (@fingolfin)
• Introduce computation of toric ideals (#764) (@lkastner)
• Short paragraph on constructing polynomials. (#765) (@wdecker)
• Rename accessor to underlying polymake object (#767) (@lkastner)
• Localization framework for commutative rings (#768) (@HechtiDerLachs)
• update singular to v0.8 (#775) (@tthsqe12)
• Change perfect_group to return permutation groups by default (#776) (@fingolfin)
• docs: workflow to cleanup doc preview after closing PR (#778) (@benlorenz)
• ToricVarieties: Move docs under Algebraic Geometry, minor improvements (#779) (@lkastner)
• Issue/772 and SubObjectIterator (#780) (@alexej-jordan)
• Introduces msolve functionality to OSCAR (#781) (@ederc)
• Faq: WIP (#782) (@fieker)
• initial step towards matrix groups in char. zero (DRAFT) (#783) (@ThomasBreuer)
• Some code unification (#785) (@lkastner)
• Documentation by Wolfram on ungraded modules (#786) (@AlexD97)
• Add birkhoff, pyramid, bipyramid to manual (#789) (@fingolfin)
• move Cohomology to GModule to experimental (#793) (@fieker)
• get rid of the mat_iso field in matrix groups (#796) (@ThomasBreuer)
• changed show for MatrixGroupElem ... (#797) (@ThomasBreuer)
• fix for ring_iso_oscar_gap (#799) (@ThomasBreuer)
• Improve documentation of toric varieties (#800) (@HereAround)
• Adjust doctest to latest Singular.jl (#804) (@fingolfin)
• Fix #788 (Test suite speed regression) (#805) (@AlexD97)
• Fix direct product of modules (#806) (@AlexD97)
• Some tweaks to the GAP code (#807) (@fingolfin)
• improve ring_iso_oscar_gap for finite fields (#808) (@ThomasBreuer)
• CI: cancel superfluous CI runs for pull requests (#810) (@fingolfin)
• Fixes #795 (#811) (@thofma)
• Fewer nested rings in tests, and groebner over immutables (#812) (@tthsqe12)
• Tweak the "cancel" workflow (#813) (@fingolfin)
• Improvements (and minor extension) for toric varieties (#815) (@HereAround)
• Minor tweaks to the group actions code (#816) (@fingolfin)
• support empty lists of group generators (#817) (@ThomasBreuer)
• CI: use cancel-in-progress (#818) (@fingolfin)
• Optimize some calls into GAP (#819) (@fingolfin)
• Implement group of torusinvariant Cartier divisors and the Picard group (#820) (@HereAround)
• Fix (work around...) #784 (#821) (@joschmitt)
• small changes in preparation of docu (#822) (@wdecker)
• Fix minor bugs (#823) (@AlexD97)
• Require GAP 0.7.2 (#824) (@fingolfin)
• Fix some matrix(...) call relying on soon to be changed method (#825) (@thofma)
• Fill in some Hecke stubs (#826) (@thofma)
• Require Singular 0.9.0 (#827) (@tthsqe12)
• Rework folder structure and some minor improvements to PolyhedralGeometry (#828) (@lkastner)
• overhauling the com...

v0.6.0

Oscar v0.6.0

Diff since v0.5.2

Closed issues:

• Groups: Replace adhoc linear algebra code (#407)
• iszero duplicate (#417)
• Absolute factorization docstring example failing (#420)
• Documentation broken (#422)
• OSCAR website should link to docs (#443)
• Don't forget to fix singular_ring(::NmodRing) (#444)
• Random error in FreeModules-graded-test.jl (#451)
• Introduce (resp. import from Hecke) coefficient_ring for our polynomial rings (including decorated) (#454)
• Ideal membership (#485)
• inexplicable behaviour of QabField (#491)
• bug in hilbert_polynomial (#505)
• docs: collapse all top-level entries in the navigation by default (#512)
• docs: ordering of top-level entries (#516)
• Missing functionality for quotients of graded rings (#526)
• Kroki (#529)
• Determinants of matrices with polynomial entries (#545)
• problem with building the Oscar documentation (#547)
• Printing roots of unity (#552)
• segmentation fault primary decomposition over number field (#557)
• No singular_ring for finite fields (#566)
• geometric_genus(C::ProjectivePlaneCurve{S}) is wildy type unstable (#572)
• Importing Oscar breaks display of Vectors in Pluto notebooks (#597)
• docs: disable doctests by default, allow enabling (#604)
• galois_group problems (#613)

Merged pull requests:

• Binomial ideals (#401) (@CarloSircana)
• Projective elliptic curves and points on it (#411) (@delphinepol)
• Bump version to 0.5.3-DEV (#415) (@thofma)
• Don't run doctest of upstream packages (#416) (@thofma)
• add mpoly-parametric file for Q(t)[x] (#418) (@tthsqe12)
• Remove duplicate method for iszero(I::MPolyIdeal) (#419) (@fingolfin)
• Nestings (#421) (@tthsqe12)
• Fix documentation build (+ tweaks) (#423) (@thofma)
• Mat elim (#425) (@GDeFranceschi)
• homogenous -> homogeneous (#428) (@fingolfin)
• access to GAP's "tester" and "setter" functions (#431) (@ThomasBreuer)
• small changes in Docu (#433) (@wdecker)
• Remove the module name from the docstring (#435) (@thofma)
• Bugfix in "noether_normalization" (#436) (@raulepure)
• various changes in docu (#438) (@wdecker)
• small change suggest by @rfourquet (#439) (@wdecker)
• Fix binomial primary decomposition (#440) (@CarloSircana)
• Export MPolyQuoElem for better printing (#441) (@thofma)
• Bump dependencies (#442) (@thofma)
• added labelled_matrix_formatted (#445) (@ThomasBreuer)
• Decorate MPolyElem_dec with another type parameter (#446) (@thofma)
• Begin new structure docu CA (#447) (@wdecker)
• Normal form (#448) (@ederc)
• Improvements on isunital function (#450) (@CarloSircana)
• Removed homogenization.jl (#452) (@delphinepol)
• simple tests for ideals (#453) (@wdecker)
• Groebner fixes (#455) (@ederc)
• Fix #451 (#456) (@thofma)
• correction + addition (#457) (@wdecker)
• include binomial_ideals.jl (#458) (@CarloSircana)
• Fix for binomial primary decomposition (#459) (@CarloSircana)
• add upper_bound_theorem in polytopes (#460) (@OguzhanYueruek)
• add interface, protoptype, to Singular fancy orderings (#462) (@fieker)
• Extend PolynomialRing constructors (#463) (@thofma)
• Wolfram (#464) (@wdecker)
• Wolfram2 (#465) (@wdecker)
• Adapted genus for curves to recent changes (#466) (@delphinepol)
• Reorder include statements (#467) (@thofma)
• Polytopes: Initial documentation (#468) (@lkastner)
• fix some nesting bugs (#469) (@tthsqe12)
• Primality proving (#470) (@delphinepol)
• more on quotient rings, various, docu (#471) (@wdecker)
• add absolute_primary_decomposition over QQ (#472) (@tthsqe12)
• Restructured docu (#473) (@wdecker)
• Clarify groebner assure (#474) (@tthsqe12)
• Two trivial changes (#476) (@fingolfin)
• Added the available docstrings for Groups (#477) (@ThomasBreuer)
• start docu binomial ideals (#478) (@wdecker)
• Fix binomial ideals (#479) (@CarloSircana)
• Update Algebra Homomorphisms (#481) (@raulepure)
• split groups.md into several files (#482) (@ThomasBreuer)
• Bump dependencies (#486) (@thofma)
• fix coordinates to return graded polys (#487) (@fieker)
• fixes leading_ideal stuff (see issue #485) (#489) (@ederc)
• deepcopy bug fixes (#490) (@tthsqe12)
• Remove illegal == for QabField (#492) (@thofma)
• add interface to Conway polys in flint (#493) (@fieker)
• small changes affine algebras and Docu (#494) (@wdecker)
• added an index to the Oscar documentation (#495) (@ThomasBreuer)
• Use DocumenterCitations >= 0.2.5 for docs (#496) (@fingolfin)
• changed/fixed references (#498) (@ThomasBreuer)
• started docu invariant theory (#500) (@wdecker)
• Add docs/README.md (#501) (@fingolfin)
• try to automate and improve the doc building. WIP (#502) (@fieker)
• Some minor doc tweaks (#503) (@fingolfin)
• Basic functionality for quotient rings (#506) (@ederc)
• corrected hilbert_polynomial (#507) (@wdecker)
• Wolfram (#509) (@wdecker)
• First attempt for a documentation for the PlaneCurveModule (#510) (@delphinepol)
• Use @cite in two more places (#511) (@fingolfin)
• basic function field support (#519) (@8d1h)
• docs: reorder top-level entries (#521) (@fingolfin)
• docs: collapse level 1 in the navbar (#522) (@fingolfin)
• Refactor code for building the documentation (#524) (@fingolfin)
• Small fix for AlgHom (#527) (@raulepure)
• Fix nmod ring (#528) (@tthsqe12)
• mostly cosmetics (#530) (@wdecker)
• Fix return type of homogenous_components (#531) (@thofma)
• Fix coercion into quotient rings (#532) (@thofma)
• Fix evaluation for graded polynomials (#533) (@thofma)
• Fix promotion (#534) (@thofma)
• Rename function to obtain underlying abelian group (#535) (@thofma)
• some doctest examples (#537) (@wdecker)
• Towards char 0 matrix groups in Oscar (#538) (@joschmitt)
• Make degree of zero elements throw (#543) (@thofma)
• fix divides for zero dividend (#544) (@tthsqe12)
• add "Introduction" sections to the documentation (#549) (@ThomasBreuer)
• docs: try harder to use the same module instances (#550) (@fingolfin)
• replaced more bib entries (#551) (@ThomasBreuer)
• Bump dependencies, ad some ad hoc methods and fix promote rules (#555) (@thofma)
• example absolute primary decomposition (#556) (@wdecker)
• Adjust AbstractAlgebra doc refs after recent rearrangement. (#562) (@wbhart)
• proper singular_ring(::AnticNumberField) (#563) (@tthsqe12)
• Minor changes to Plane Curve and Curve Divisor (#565) (@delphinepol)
• add singular_ring(::FqNmodFiniteField) (#567) (@tthsqe12)
• fix printing of QabElem (#568) (@tthsqe12)
• fix ideal printing (#570) (@tthsqe12)
• Clean up for abelian closure (#571) (@thofma)
• Fixed problem of stability of types for genus of curves (issue #572) (#579) (@delphinepol)
• Fix typo in __init_JuliaData, simplify code (#580) (@fingolfin)
• introductary text (#581) (@wdecker)
• WIP: next step for documentation of groups (#583) (@ThomasBreuer)
• First interface for invariant theory of finite groups (#584) (@joschmitt)
• Upgrade to GAP.jl 0.6 (#586) (@fingolfin)
• Run CI tests with Julia 1.7 (#587) (@fingolfin)
• Fix AA version in the documentation (#593) (@thofma)
• changed the rand methods for groups and cosets ... (#598) (@ThomasBreuer)
• some more docu for invariant theory (#599) (@wdecker)
• Bump dependencies (#600) (@thofma)
• fixed omega_group(d, q) for odd d and even q (#601) (@ThomasBreuer)
• fix doctests in invariants (Array->Vector) (#602) (@benlorenz)
• docs: rework docs-project, allow doctest option (#606) (@benlorenz)
• more details on set-up in docu of invariant theory (#607) (@wdecker)
• Feature/polytopes/catalan_solid (#608) (@OguzhanYueruek)
• Improve isomorphic_group_over_finite_field (#609) (@fingolfin)
• Polytopes: Add SubdivisionOfPoints object (#610) (@lkastner)
• Docs/polytopes (#611) (@tbrysiewicz)
• Update Singular.jl to 0.6.0 (#612) (@tthsqe12)
• CI: enable color in docu workflow (#614) (@fingolfin)
• Enh/polytopes/normal cone (#616) (@lkastner)
• Polytopes: Further improve docs (#619) (@lkastner)
• Set version to 0.6 (#620) (@thofma)

What's Changed

• Binomial ideals by @CarloSircana in #401
• Bump version to 0.5.3-DEV by @thofma in #415
• Don't run doctest of upstream packages by @thofma in #416
• Projective elliptic curves and points on it by @delphinepol in #411
• add mpoly-parametric file for Q(t)[x] by @tthsqe12 in #418
• Remove duplicate method for iszero(I::MPolyIdeal) by @fingolfin in #419
• Fix documentation build (+ tweaks) by @thofma in #423
• Nestings by @tthsqe12 in #421
• small changes in Docu by @wdecker in #433
• Remove the module name from the docstring by @thofma in #435
• Bugfix in "noether_normalization" by @raulepure in #436
• various changes in docu by @wdecker in #438
• Fix binomial primary decomposition by @CarloSircana in #440
• small change suggest by @rfourquet by @wdecker in #439
• Export MPolyQuoElem for better printing by @thofma in #441
• Bump dependencies by @thofma in #442
• Begin new structure docu CA by @wdecker in #447
• Normal form by @ederc in #448
• Decorate MPolyElem_dec with another type paramter by @thofma in https...

v0.5.2

Oscar v0.5.2

Diff since v0.5.1

Closed issues:

• Factoring polynomials over finite fields does not work. (#188)
• Error in factoring polynomials over QQ (#211)
• Make a new release, soon (#234)
• wrong type? (#260)
• ideal in quotient ring (#263)
• BoundsError: attempt to access 0-element Array{GrpAbFinGenElem,1} at index [1] (#270)
• Add a bibliography to our manual(s) (#311)
• Ensure CI also covers our doctests (#323)
• Coercing a vector into a perm group should fail if it is too long (#371)
• direct_product for groups should give the embedding / projection morphisms (#372)
• groebner_basis result is different to std (#397)
• Weird behaviour with all latest masters [maybe Oscar.Integer should be the same as Base.Integer] (#403)

Merged pull requests:

• Oscar matrix (#173) (@GDeFranceschi)
• an experiment in mixing docs... (#209) (@fieker)
• Vect spaces (#244) (@GDeFranceschi)
• Jordan struct (#268) (@GDeFranceschi)
• collected stuff to compute Galois groups of type M_22 (#273) (@fieker)
• Set version to 0.5.2-DEV (#284) (@thofma)
• Add configuration for GitHub Codespaces (#286) (@fingolfin)
• Some cleanup and simplification to polytopes code (#287) (@fingolfin)
• Polytopes: support fmpz_mat, fmpq_mat in convex_hull (#288) (@fingolfin)
• Forms (#290) (@GDeFranceschi)
• Added some functionalities for polynomials using the corresponding Si… (#292) (@delphinepol)
• add normalise(::MPolyQuo) (#293) (@tthsqe12)
• powmod -> powermod. Addresses Nemo # 988 (#294) (@wbhart)
• Small fix in invariant (#295) (@Pi-tree)
• Try to fix resolvent (#297) (@Pi-tree)
• add basic qring ideal arithmetic (#299) (@tthsqe12)
• First version of polyhedral fans (#300) (@lkastner)
• permutations act on fmpz (#302) (@ThomasBreuer)
• add more functions related to primary decomposition (#303) (@tthsqe12)
• some functionality for G-sets (#304) (@ThomasBreuer)
• Small mpoly fixes (#306) (@tthsqe12)
• Transform form (#307) (@GDeFranceschi)
• split mpoly.jl into mpoly-ideal.jl (#308) (@wdecker)
• Refactor mpoly-graded-test.jl (#309) (@thofma)
• final touches (powering and intersect) (#312) (@fieker)
• Added functionalities for ProjCurveDivisor. (#313) (@delphinepol)
• fixes missing docstrings for ideal operations (#314) (@ederc)
• Refactor FreeModules-graded-test.jl, fix #270 (#315) (@thofma)
• Extracting and documenting groebner functionality (#316) (@ederc)
• make documentation examples jldoctests (#317) (@ederc)
• further functionality for ideals (#319) (@fieker)
• fix intersection of multiple ideals (#320) (@tthsqe12)
• Address some issues (#321) (@GDeFranceschi)
• no more end-user docu for internal groebner-related functionality, (#322) (@ederc)
• Don't deploy docs twice in CI, don't deploy locally (#324) (@fingolfin)
• func with monomial orderings (#325) (@fieker)
• docs: use DocumenterCitations (#326) (@rfourquet)
• Radical membership and other functionality (#327) (@fieker)
• Early attempt on an interface for elliptic curves (#328) (@delphinepol)
• converts examples from docu to jldoctests in mpoly-ideals.jl (#329) (@ederc)
• move Hilbert stuff over to Wolfram (#330) (@fieker)
• various additions (#333) (@wdecker)
• base_ring(A), modulus(A) (#334) (@wdecker)
• Fix grade (#335) (@fieker)
• Wolfram (#336) (@wdecker)
• Bump AA/Nemo/Singular version (#337) (@thofma)
• Functionality for Hilbert data of affine algebras. (#338) (@wdecker)
• add normalize_with_delta (#339) (@tthsqe12)
• isfiltrated -> isfiltered (#341) (@fingolfin)
• Build documentation on GitHub hosted runner (#342) (@fingolfin)
• CI: don't cache Julia artifacts (#343) (@fingolfin)
• CI: enable doctests (#344) (@fingolfin)
• Documentation text on Hilbert functions and further improvements on docu (#346) (@wdecker)
• adjusted help texts of Noether normalization and normalization as wel… (#350) (@wdecker)
• New isometry groups (#351) (@GDeFranceschi)
• dded function isnormal + docu (#352) (@wdecker)
• A new try on algebra homomorphisms (#354) (@raulepure)
• Add eltype + tests (#355) (@GDeFranceschi)
• fixed orbits for PermGroup (#357) (@ThomasBreuer)
• Docu for Raul's improvement of algebra homomorphisms (#358) (@wdecker)
• Deprecate coeffs (#359) (@wbhart)
• Fixed problem with missing docstring (#360) (@wdecker)
• Added help text for Hilbert data (#361) (@wdecker)
• some (harmless) things in Galois Group (#362) (@fieker)
• Further functionality for AlgHoms (#363) (@raulepure)
• Fix some doctest issues (#364) (@fingolfin)
• new functionality for Hilbert data, algebra homs (by Raul), and respe… (#365) (@wdecker)
• Replaced x by t in representing Hilbert data (#366) (@wdecker)
• Transform form groups (#368) (@GDeFranceschi)
• Modified conversion of elements related to MPolyQuo (#370) (@raulepure)
• Replace map_coeffs -> map_coefficients. (#375) (@wbhart)
• Updating AlgHom and "subalgebra_membership" (#376) (@raulepure)
• Strat to document functionality on modules (#377) (@wdecker)
• Two issues fixed. (#378) (@GDeFranceschi)
• Improved docu for ideals (#379) (@wdecker)
• Adjusted docstrings to changes by Raul, improved docu of affine algebras (#380) (@wdecker)
• Added functions for homogenization (#381) (@delphinepol)
• Weierstrass form from an elliptic curve (#382) (@delphinepol)
• Remove tail for spolys in favour of a version implemented in AbstractAlgebra. (#383) (@wbhart)
• small adjustions (#384) (@wdecker)
• CI: test with Julia 1.6 (#385) (@fingolfin)
• Simplify matrix_manipulation.jl, add cleanup TODOs (#386) (@fingolfin)
• More references, tests, small things (#387) (@wdecker)
• Remove normaliser synonym for normalizer; deprecate listperm (#390) (@fingolfin)
• Use and require Singular 0.5.1 (#391) (@fingolfin)
• docs: consistently name 'Examples' section in docstrings (#392) (@fingolfin)
• Reorganizing the Polytopes code (#393) (@lkastner)
• Fix missing lc -> leading_coefficient, coeffs -> coefficients (#394) (@thofma)
• Remove (soon to be) deprecated Hecke functionality (#395) (@thofma)
• added saturation_with_index (#396) (@wdecker)
• Genus for plane curves (#398) (@delphinepol)
• Fix doctests (#400) (@fingolfin)
• start fractional_ideal (#404) (@tthsqe12)
• Fix #403 (#405) (@thofma)
• typo (#406) (@wdecker)
• added parent_type methods for group elements (#409) (@ThomasBreuer)
• Fix duplicated function (now in Singular.jl) (#412) (@thofma)
• Bump Hecke version (#413) (@thofma)
• Bump OSCAR to 0.5.2 (#414) (@thofma)

v0.5.1

Oscar v0.5.1

Diff since v0.5.0

Closed issues:

• Migrate all Oscar related Julia packages to use JLLs (#109)
• make some Singular functions accessible for Oscar objects (#139)
• inside Oscar, GAP's Browse package cannot be loaded (#160)
• Installation Fails (#187)
• Updating FLINT_jll (and other JLLs) across all OSCAR packages (#193)
• SLPolyRing not a ring? (#195)
• SLPoly (in Oscar) does not print (#196)
• Improve conversion between GAP larger integers and fmpz (#202)
• Polymake and Singular don't compile when installing Oscar v0.2.0 (#205)
• CI test failure: no method matching (::FlintRationalField)(::Singular.n_Q) (#208)
• is_dev tests are not run in CI (#213)
• divexact for decorated polynomials (#223)
• Fraction with decorated polynomials (#226)
• Failed to precompile with Julia 1.6.0-beta1 (#237)
• Coercion of elements in function fields (#241)
• conversion broken (#248)
• Eval for SLPoly wrong (#250)
• slpoly_ring (#251)
• evaluate SLPoly (#253)
• ferret.so: undefined symbol: _ZNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEEC1Ev (#262)

Merged pull requests:

• introduce on_points, on_tuples, ... (#127) (@ThomasBreuer)
• More tests + functions for factors (#142) (@GDeFranceschi)
• Change Homomorphisms type (#164) (@GDeFranceschi)
• Jacobi functions for non-decorated polynomials (#165) (@raulepure)
• First attempt for affine plane curves (#166) (@delphinepol)
• Adapted groebner_basis command (#167) (@raulepure)
• added two functions (#168) (@ThomasBreuer)
• First try on localalization of multivariate polynomial rings (#169) (@raulepure)
• fixed an assignment in MPolyIdeal (#170) (@ThomasBreuer)
• CompatHelper: bump compat for "AbstractAlgebra" to "0.11" (#171) (@github-actions[bot])
• added components related functions (#172) (@delphinepol)
• Added multiplicity related functions for affine plane curves (#174) (@delphinepol)
• fix "docstring oddities" (#175) (@rfourquet)
• update TagBot.yml (#176) (@rfourquet)
• Remove .travis and add github actions (#177) (@thofma)
• Fix import statement for julia 1.3 (#179) (@thofma)
• Module (#180) (@dschaefetu-kl)
• Change travis to github actions badge (#181) (@thofma)
• Fix README.md badge (#182) (@fingolfin)
• Tweak github actions (#183) (@thofma)
• Define a structure and some functionalities for projective plane curves (#185) (@delphinepol)
• Restore code coverage reporting (#189) (@fingolfin)
• Fix test failure in Julia 1.6, some cleanup (#190) (@fingolfin)
• Submit coverage data to coveralls, too (#191) (@fingolfin)
• permutation action on polynomials (#192) (@ThomasBreuer)
• Added multiplicity related functions for projective plane curves and a… (#194) (@delphinepol)
• first conversions between GAP and Nemo (#197) (@ThomasBreuer)
• move SLpoly in Oscar (#198) (@rfourquet)
• GH Actions: update to actions/checkout@v2, tweaks (#199) (@fingolfin)
• README.md: add Coveralls status badge (#200) (@fingolfin)
• SLPolyRing: A couple fixes to make it more usable (#201) (@rfourquet)
• Update to GAP 0.5 (#203) (@fingolfin)
• gens(G,i) -> gen(G,i) (#207) (@fingolfin)
• Load PlaneCurve code in OSCAR dev builds; use gen(R,1) (#210) (@fingolfin)
• Tests for PlaneCurves (#212) (@delphinepol)
• Revise how DEV mode is decided (#214) (@fingolfin)
• Update AbstractAlgebra, Nemo, Hecke to latest version (#218) (@fingolfin)
• Faster conversion GAP <-> fmpz (#219) (@fingolfin)
• Rename pkgdir to oscardir (#220) (@fingolfin)
• Overhaul GitHub Action settings (#222) (@fingolfin)
• Add some missing MPolyElem_dec method (#224) (@thofma)
• Deal with presence of Hecke.isregular (#225) (@fingolfin)
• Radical of ideals (#227) (@raulepure)
• Foward ad hoc operations on MPolyElem_dec (#228) (@thofma)
• Replace convert function (#231) (@raulepure)
• Created a structure for divisors on curves (#233) (@delphinepol)
• Fix is_dev for ]add Oscar#master (#236) (@thofma)
• Fix BlockSystems iterator (#238) (@Pi-tree)
• 1st draft at HowTo (#239) (@fieker)
• More helpful error message on Windows (#240) (@thofma)
• Add one(::MPolyQuo) and sort the code a bit (#242) (@thofma)
• Require Singular 0.4.4 (#243) (@fingolfin)
• New type BasicGAPGroupElem and related editing (#246) (@GDeFranceschi)
• add more doc (and fun) (#247) (@fieker)
• a new start... (#249) (@fieker)
• Fix some problems with orderings in groebner basis over Q (#254) (@thofma)
• Sl poly not m poly (#255) (@fieker)
• fix #250, evaluate for SLPoly (#256) (@rfourquet)
• Experimental (#257) (@fieker)
• Paul (#258) (@fieker)
• sort the mess with isGB (#259) (@fieker)
• Some tweaks to the curves code (#261) (@fingolfin)
• Number fields as arbitrary multivariate quotients Q[x]/I (#265) (@thofma)
• adjusted GroupCharacters.jl (#266) (@ThomasBreuer)
• Curves: add missing parametric constructors, remove _assure_has_components (#267) (@fingolfin)
• Change order for groups to return fmpz by default (#269) (@fingolfin)
• Prepare for new version 0.5.1 (#272) (@thofma)
• [WIP] started process of merging OscarPolytopes into Oscar (#274) (@tbrysiewicz)
• Test against julia 1.6 (#278) (@thofma)
• Add missing exports for Polytopes (#281) (@fingolfin)

v0.5.0

Oscar v0.5.0

Diff since v0.4.0

Closed issues:

• WARNING: import of Hecke.example into Oscar conflicts with an existing identifier; ignored. (#97)
• Oscar fails to precompile on Ubuntu (#137)
• installing Oscar is broken (#151)
• New Oscar release todo (#152)

Merged pull requests:

• Manual groups (#116) (@GDeFranceschi)
• G-sets (#119) (@fingolfin)
• initial proposal of Oscar group characters (#124) (@ThomasBreuer)
• import StraightLinePrograms package (#125) (@rfourquet)
• Cosets changes (#126) (@GDeFranceschi)
• Update StraightLinePrograms subtree (#130) (@rfourquet)
• add CatSLP example (#131) (@rfourquet)
• Highlight Julia syntax in README (#132) (@zlatanvasovic)
• Isomorphic group (#138) (@GDeFranceschi)
• CompatHelper: bump compat for "AbstractAlgebra" to "0.10" (#141) (@github-actions[bot])
• a few fixes and suggestions concerning groups (#144) (@ThomasBreuer)
• in (membership test) for groups (#145) (@ThomasBreuer)
• automorphisms of QabField() (#147) (@ThomasBreuer)
• show the complex conjugate value via overline (#148) (@ThomasBreuer)
• Add Oscar.@example with proper scoping (#150) (@thofma)
• Test 1.5 on travis (#153) (@thofma)
• allow fail in 1.3 (#154) (@fieker)
• Dschaefetu kl test (#157) (@fieker)
• support for quadratic subfields of QabField() (#158) (@ThomasBreuer)