v1.3.0

Oscar v1.3.0

Highlights

• #4399 Graduate Weyl groups and root systems from experimental to officially supported
• #4294 Graduate elliptic surfaces from experimental

Renamings

• #4526 Rename blowup and blow_up_points to blow_up and blow_up_points, and other intersection theory changes
• #4433 Rename new_ray to exceptional_ray
• #4304 Change hom to map in in intersection theory
• #4302 Rename acting_domain to acting_group and some improvements for group cosets
• #4278 Rename minimal_generating_set for groups to minimal_size_generating_set

Algebraic Geometry

• #4615 Speed up computations for EllipticSurface by reduction to positive characteristic.
• #4560 Add a database of Enriques surfaces
• #4540 Support for computing automorphism groups of Enriques surfaces
• #4534 Add stabilizer_in_orthogonal_group to compute stabilisers of timelike vectors
• #4485 Make saturation for principal ideals faster by delegating to remove
• #4393 Introduce -inf as potential output for the dimension of an ideal
• #4352 Add documentation for coherent sheaves
• #4345 Add a prototype for a moving lemma in concrete intersection theory
• #4327 Add Eagon-Northcott complexes
• #4272 Add Hasse-Schmidt derivatives
• #4256 Print Betti tables more nicely
• #4183 Add tweaks for enabling a 2-neighbor-step in characteristic 0

Combinatorics

• #4633 Fix vertices(G) to return all vertices, including isolated ones
• #4499 Add is_bipartite(::Graph)
• #4459 Make vertex labels in graph visualization start at 1
• #4450 Add in(::Int, ::Edge), signed_incidence_matrix(::Graph{Undirected}), connectivity(::Graph{Undirected})
• #4441 Fix degree(::Graph) documentation
• #4299 Fix leading zero bug in matroid_hex
• #4270 Fix BoundError in weights(hook_lengths(...))

Commutative Algebra

• #4601 Fix Krull dimension of polynomial rings over number fields
• #4596 Support computing Gröbner basis for lattice ideals using 4ti2, and improve eliminate to avoid recomputing a Gröbner basis
• #4497 Allow variables of same positive degree in monomials_of_degree
• #4492 Add links to commutative algebra tutorials
• #4488 Overhaul preprocessing for radical, primary_decomposition, and friends over number fields
• #4468 Graduate present_finite_extension_ring from experimental to supported (and fix a bug in it)
• #4456 Generalize monomials_of_degree to allow graded rings with grading group Z
• #4400 Speed up evaluation of maps of MPolyRings which take variables to variables
• #4379 Fix bug in comparison function in module orderings
• #4346 Fix characteristic method for localized rings
• #4248 Add Cartan eilenberg resolutions of complexes
• #4235 Add monomial_basis for MPolyQuoLocRing

F-Theory Tools

• #4636 Add attribute for more detailed info on tunable sections
• #4597 Update tune function and related definitions/functions
• #4562 Align names of properties and attributes among families of and individual G4-fluxes
• #4503 Fix and extend strict_transform
• #4500 Extend support for G4-flux families and individual G4-fluxes
• #4491 Save updated intersection numbers after costly computation
• #4487 Compute D3-tadpole for family of G4-fluxes
• #4466 Introduce families of G4-fluxes
• #4446 Add support for all vertical, well-quantized G4s that do not break the non-abelian gauge group
• #4423 Use Zenodo data as artifact
• #4422 Print known properties of G4-fluxes
• #4343 Extend support for zero section and zero section class
• #4286 Support computation of all well-quantized and vertical G4-fluxes
• #4268 Implement ambient space models for G4-flux candidates
• #4243 Support computation of basis of H^(2,2) and H^4

Groups

• #4608 Add is_primitive for $G$-sets
• #4594 Add $G$-set docstrings to main documentation
• #4582 Cache parents for permutations in perm, cperm and @perm
• #4490 Make the @perm macro more powerful by supporting more argument variants and increased consistency
• #4469 Add dedicated stabilizer methods for matrix groups for improved performance
• #4465 Add orbit_representatives_and_stabilizers for 0-dim. subspaces
• #4416 Add is_atlas_character_table
• #4411 Support character_field for a vector of characters
• #4409 Add the library of groups with at most 14 conjugacy classes
• #4401 Add isomorphic_subgroups
• #4378 Fix wrong result of isomorphism(FPGroup, G, on_gens = true) for trivial G with more than 0 generators
• #4361 Speed up cperm
• #4359 Add cycle_length for PermGroupElem
• #4357 Improve isomorphism from pc-groups and fp-groups to FinGenAbGroup
• #4337 Speed up orbit_representatives_and_stabilizers for not too large examples
• #4319 Make isomorphism(PcGroup, A) for infinite abelian A work
• #4311 Add action on matrices in row reduced echelon form
• #4307 Speed up orbits of permutation groups on integers
• #4298 Add is_left and is_right for SubgroupTransversal
• #4281 Speed up stabilizer methods for the natural action of permutation groups, and the actions on sets, tuples, and vectors of pos. integers
• #4265 Add stabilizer for $G$-sets with action on Set, Vector or Tuple objects
• #4259 Add argument check to $G$-set constructor
• #4202 Add letters function for PcGroupElem

Lie Theory

• #4676 Fix bracket for LieSubalgebras (it sometimes returned the wrong result)
• #4621 Add (dual_)geometric_representation(::WeylGroup), is_finite_order(::WeylGroupElem) and order(::WeylGroupElem)
• #4589 Implement syllables, letters and their inverse for WeylGroup and WeylGroupElem
• [#4536](https://gi...

v1.2.2

Oscar v1.2.2

• fix galois_group problem. #4396
• Fix zero-dimensional cone in cones in PolyhedralGeometry #4336
• Fix up generic characteristic method for localized rings. #4346
• test/PolyhedralGeometry: remove some prefer blocks #4351
• Add comment about bibtool version, minor fix in testsuite #4356
• Add hash method for RayVector #4354
• Fix indent in AlgebraicCycles.md #4368
• Fix toric typo #4367

Full Changelog: v1.2.1...v1.2.2

v1.2.1

Oscar v1.2.1

• fix _as_subgroups #4277
• Resolves BoundError in weights(hook_lengths(...)) #4270
• fixed the leading zero bug in matroid_hex #4299
• Update license #4257
• Fixes small_generating_set, mininimal_primes over a number field #4279
• changes to the check argument in matroid_from_matrix_columns #4287
• Test and fix norm_equation for RelNumFieldOrder #4282
• add two missing doctest end markers #4321
• CI: check for jldoctest end markers and unknown admonitions #4325
• Patch search index #4292
• Minor clarification in docs of facets. #4313
• bib: add a bunch of DOIs, minor corrections #4317
• Add some dummy hash functions for the geometry #4305
• fixes regression and adds test for file format paper #4335

Full Changelog: v1.2.0...v1.2.1

v1.2.0

Oscar v1.2.0

• Do not cache polynomial rings by @ederc in #3838
• Sets poly ring caching to false for invariant theory by @ederc in #3864
• Fix some combinatorics by @joschmitt in #3860
• Added more attributes including gauge algebras by @emikelsons in #3822
• fix: change idel to idele and improve printing by @thofma in #3859
• fixes (hopefully) #3841 by @fieker in #3866
• PolyhedralGeometry: Document IncidenceMatrix feature for maximal_* functions by @lkastner in #3854
• Add option to endow tensor product with product ordering by @joschmitt in #3868
• Fibration hopping presentation by @HechtiDerLachs in #3839
• TropicalGeometry: new linear_space algorithm for triv val on QQ by @YueRen in #3759
• Checking for product orderings by @ederc in #3873
• Set version to 1.2.0-DEV by @benlorenz in #3867
• matroids: fix automorphism for some matroids by @benlorenz in #3878
• [FTheoryTools] Refactor F-Theory QSMs by @HereAround in #3871
• arrangement_polynomial by @danteluber in #3806
• Some more fixes for the fibration hopping. by @HechtiDerLachs in #3877
• rearrange how Oscar loads GAP packages at runtime by @ThomasBreuer in #3874
• catch a corner case for elliptic surfaces by @simonbrandhorst in #3880
• speedup elliptic surfaces by @simonbrandhorst in #3884
• Experimental: Algebraic Statistics by @bkholler in #3812
• Improve type stability of tropical code by @fingolfin in #3879
• Updates AlgebraicSolving to v0.5.0 by @ederc in #3897
• Taking up intersection theory again by @wdecker in #3889
• undo most of #3874 by @ThomasBreuer in #3890
• Banff presentation rebased by @HechtiDerLachs in #3898
• change the handling of the init argument in map_word by @ThomasBreuer in #3892
• Remove caching of Lie algebras by @lgoettgens in #3894
• abstract blowups and more by @wdecker in #3901
• CI: update julia-actions/cache to v2 by @fingolfin in #3902
• Construct Lie algebras from root system by @lgoettgens in #3831
• Add direct sums of Lie algebras by @lgoettgens in #3896
• Iteratorify some tableaux by @joschmitt in #3887
• avoid calling GAP.Packages.install if possible by @ThomasBreuer in #3903
• FTheoryTools: Use direct sum of Lie algebras by @HereAround in #3908
• Enhance show for IdealGens by @lgoettgens in #3893
• Intersection theory: Further examples by @wdecker in #3906
• [FTheoryTools] Small QOL changes by @emikelsons in #3911
• Make LieAlgebraModule tests better gc-able by @lgoettgens in #3913
• Abstract bundles and more by @wdecker in #3917
• adjusting code in intersection theory by @wdecker in #3922
• fixes regression for persistent uuids across multiple sessions by @antonydellavecchia in #3920
• Adv/fix fq field elem load by @antonydellavecchia in #3919
• remove global variables and disable a check by @simonbrandhorst in #3925
• [ToricVarieties] Limit coefficient values in generic sections by @HereAround in #3930
• Intersection theory: code correction, new example by @wdecker in #3929
• add tables of marks by @ThomasBreuer in #3916
• [Serialization] Support ToricDivisorClass by @HereAround in #3931
• Intersection theory: start to document abstract variety maps and more by @wdecker in #3942
• Add/move some type assertions by @fingolfin in #3927
• Rename QQAbElem -> QQAbFieldElem by @lgoettgens in #3935
• Make global variables const by @lgoettgens in #3945
• Fix doctests by @joschmitt in #3948
• Minor tweaks by @fingolfin in #3936
• Matroid serialisation and matroid encodings by @Sequenzer in #3886
• Added the groebner_basis method for FreeAssAlgIdeals to the docs. by @Sequenzer in #3949
• Intersection theory: Correct code + corresponding example by @wdecker in #3952
• tropical determinant via Hungarian method by @micjoswig in #3943
• [FTheoryTools]Small QOL changes 2 by @emikelsons in #3941
• Intersection theory: extend documentation by @wdecker in #3953
• Use algebraic_closure(QQ) instead of QQBar by @lgoettgens in #3954
• Make Lie algebra construction faster by @lgoettgens in #3937
• Mj/various cleanup by @micjoswig in #3955
• Sets poly ring caching to false for modules by @ederc in #3872
• Disable Solving tests by @ederc in #3957
• [FTheoryTools] Overhaul Serialization by @HereAround in #3932
• Intersection theory: Schubert calculus by @wdecker in #3959
• updates related to polymake 4.12 by @benlorenz in #3819
• Schemes: disable cremona transformation test due to random failures by @benlorenz in #3960
• A few toric fixes and additions by @HereAround in #3964
• tests if a set of tropical vectors are tropically generic by @danteluber in #3938
• Fix vinberg booktests by @simonbrandhorst in #3939
• [ToricVarieties] Overhaul equality of normal toric varieties by @HereAround in #3946
• chore: bump dependencies by @thofma in #3958
• [ToricSchemes] Fix underlying_divisor for trivial toric divisor by @HereAround in #3962
• Stop pretending OscarInterface has a manual by @fingolfin in #3968
• fix: use updated documentation source for Hecke by @thofma in #3971
• Intersection theory: hyperplane classes by @wdecker in #3970
• Nicer show for GAPGroupClassFunction by @fingolfin in #3972
• [FTheoryTools] Implement G4-fluxes by @HereAround in #3965
• FTheoryTools: Add comment to explain similar terminology; doc fix by @apturner in #3975
• Add tensor_product for two GAPGroupClassFunction by @fingolfin in #3973
• CI: stop testing for invalidations by @fingolfin in #3977
• QuadFormAndIsom: Galois action on cyclotomic genera by @StevellM in #3966
• Add smaller_degree_permutation_representation, lazy double cosets by @simonbrandhorst in #3899
• test and improvements for borcherds method by @simonbrandhorst in #3984
• [FTheoryTools] Some docstring fixes by @lgoettgens in #3985
• Remove custom non-conformant Base.:/ method for MPolyLocRingElem by @HechtiDerLachs in #3981
• Intersection theory: Correct function abstract_projective_bundle by @wdecker in #3990
• [ToricVarieties] Add link to docu of immaculate line bundles by @HereAround i...

v1.1.2

Oscar v1.1.2

Diff since v1.1.1

What's Changed

• [1.1] booktests: merge updates from book repo by @benlorenz in #4220
• Version 1.1.2 by @benlorenz in #4224

v1.0.5

Oscar v1.0.5

Diff since v1.0.4

This release has been identified as a backport.
Automated changelogs for backports tend to be wildly incorrect.
Therefore, the list of issues and pull requests is hidden.

v1.1.1

Oscar 1.1.1

Backported changes

• catch a corner case for elliptic surfaces #3880
• speedup elliptic surfaces #3884

Full Changelog: v1.1.0...v1.1.1

v1.1.0

What's Changed

• Rename two functions to avoid confusion with is_<property>_with_<extrastuff> functions by @lgoettgens in #3170
• QuadFormAndIsom: more features by @StevellM in #3160
• Version 0.15.0-DEV by @lgoettgens in #3176
• Replace some instances of 'typeof(a)<:b' by 'a isa b' by @fingolfin in #3177
• Sheaf cohomology rebase by @HechtiDerLachs in #3154
• Renaming for localizations by @HechtiDerLachs in #3174
• CI: add julia-cache action for github ci by @benlorenz in #3164
• renaming for the book and speed up by @gfourier in #3181
• Fix one docstring typo by @paemurru in #3182
• Yr/tropical bugs by @YueRen in #3169
• Rename jacobi_matrix to jacobian_matrix by @paemurru in #3180
• fix some problems with group automorphisms by @ThomasBreuer in #3190
• Fix a typo in the documentation by @joschmitt in #3188
• Catch empty polynomial ring in matroid code by @joschmitt in #3183
• Renaming for schemes by @HechtiDerLachs in #3175
• Rename are_algebraically_independent by @lgoettgens in #3172
• Streamline powers of Lie algebra modules by @lgoettgens in #3081
• Fixes length for free resolutions by @ederc in #3194
• Glueing to gluing by @HechtiDerLachs in #3195
• [FTheoryTools] More improvements by @HereAround in #3146
• Delete the old plane curves and projective space by @simonbrandhorst in #3179
• Two bugs in tropical_polynomial by @YueRen in #3187
• fix: workaround for bug in new flint binaries by @thofma in #3203
• Address a bunch of JET and Aqua issues by @fingolfin in #2995
• Some more changes for the book by @HechtiDerLachs in #3200
• Remove ambient closure ideal by @HechtiDerLachs in #3205
• Revert "fix: workaround for bug in new flint binaries (#3203)" by @benlorenz in #3206
• docs: fix reference to intersection -> intersect by @benlorenz in #3214
• different data format for pc group serialization by @ThomasBreuer in #3018
• Initial ideals and marked Groebner bases from TropicalGeometry/groebner_fan.jl/groebner_fan by @ooinaruhugh in #3215
• add special objects for subgroup transversals by @ThomasBreuer in #3216
• Add some more functionality, docs and tests for root systems by @lgoettgens in #3191
• Remove trailing newline in labelled matrix printing by @joschmitt in #3213
• Rename some methods by @HechtiDerLachs in #3208
• Make inj/proj of products groups consistent with other products objects by @lgoettgens in #3201
• Minor fix for show method of character tables; fix printing of named groups like SL(2,2) in some situations by @fingolfin in #3226
• Adv/serialization upgrades docs by @antonydellavecchia in #3112
• Exact arithmetic check for Gröbner related functionality by @ederc in #3232
• change show for nat. symmetric/alternating groups by @ThomasBreuer in #3235
• Fix function name in docstring by @StevellM in #3233
• added text to a "TODO" FAQ concerning GAP packages by @ThomasBreuer in #3236
• More functionality for Weyl groups by @felix-roehrich in #3051
• better printing for RelativeBrauerGroupElem by @fieker in #3243
• CI: disable nightly for macos to reduce test time by @benlorenz in #3245
• Some group theory changes for the OSCAR book by @fingolfin in #3242
• Adds prune_with_map by @RafaelDavidMohr in #3239
• Simple fixes for sheaf cohomology computation by @HechtiDerLachs in #3241
• tests: start message for ipc.jl, explicit GC call by @benlorenz in #3229
• Serialization: disable IPC test until #3184 is solved by @benlorenz in #3246
• Adjust casing in show(::MatroidRealizationSpace) by @lgoettgens in #3244
• let right_cosets return a G-set by @ThomasBreuer in #3223
• move tropical geometry up by @fieker in #3247
• upgrade selected GAP packages at startup by @ThomasBreuer in #3222
• Fix casing in show(::AlgClosure) by @lgoettgens in #3249
• deprecate SimplicialComplex for simplicial_complex by @antonydellavecchia in #3234
• [FTheoryTools] More improvements by @HereAround in #3251
• Remove some dead code by @fingolfin in #3090
• Make new versions of AA, Nemo, Hecke available by @lgoettgens in #3231
• TropicalGeometry: fixed bug in binomial tropical varieties by @YueRen in #3212
• Rename issubset to is_subscheme for subschemes (#3202) by @paemurru in #3252
• Implement printing guidelines for multivariate ideals by @joschmitt in #3250
• use stored OD values for factor groups by @ThomasBreuer in #3248
• add show_OD_info by @ThomasBreuer in #3267
• Remove obsolete getindex methods for accessing generators by @fingolfin in #3260
• Rename number_of_* functions by @lgoettgens in #3272
• Adapt unicode printing guidelines by @lgoettgens in #3269
• Polish linear strands by @HechtiDerLachs in #3218
• polyhedron: make sure empty [] vector works as right hand side by @benlorenz in #3278
• Fix #3107 by @HechtiDerLachs in #3211
• add is_conjugate_subgroup_with_data by @ThomasBreuer in #3281
• CI: adjust test subgroups, try macos aarch64 runner for one subgroup and doctests by @benlorenz in #3280
• Adapt unicode printing of exterior powers of Lie algebra modules by @lgoettgens in #3270
• add G-set functionality for conjugacy classes by @ThomasBreuer in #3268
• Prepare for algebraic_closure(::QQField) by @lgoettgens in #3283
• feat: adjust for upcoming indexing changes by @thofma in #3276
• Say 'Polytope' in show if it is known that a Polyhedron is bounded by @micjoswig in #3289
• Remove two temporary files by @lgoettgens in #3295
• Add two missing Lowercase() by @fingolfin in #3290
• Fixed two bugs in the matroid realization code by @LukasKuehne in #3292
• Reduce test noise by @lgoettgens in #3293
• let left_cosets return a G-set by @ThomasBreuer in #3297
• Adjust to AA/Nemo/Hecke by @joschmitt in #3288
• Fix deprecation testjob by @lgoettgens in #3301
• add support to adjoin many elements by @fieker in #3294
• Simplify and unify GAP iteration code by @fingolfin in #3302
• Fix broadcast for PointVector/RayVector by @alexej-jordan in #3285
• Add serialization upgrade script for type renaming by @lgoettgens in #3303
• Add describe(G::MultTableGro...

v1.0.4

What's Changed

• Fix Oscar.build() (#3728)
• booktests: remove duplicate include, add env var to suppress spammy plots output (#3851)
• Fix Regression in K3Auto (#3847)
• Another small change to docu (#3829)
• Small changes to experimental docs (#3823)
• Small change to docu (#3824)

Full Changelog: v1.0.3...v1.0.4

v1.0.3

Oscar v1.0.3

Diff since v1.0.2

Backported pull requests:

• list group types that can be serialized #3767 (with correction via #3771)
• booktest: fix projects when called from test_module #3628
• Small fixes #3648
• Fix indentation of doc strings #3744
• Fix documentation formatting in Normal Toric Varieties #3734
• Remove stuff from docs that should not be there in a 1.0 version #3729
• bug: fix galois_group regression #3763
• No longer load code dependent on is_dev #3779
• added to documentation about reverse type map #3768
• Enhance booktests #3745
• Book Metadata #3783
• Make simplify_light return maps also for FreeModule case #3786
• Remove superfluous whitespace in documentation #3784
• Adjust to some renamings in AbstractAlgebra 0.40 #3556 (to avoid conflicts in the next two PRs)
• Fix vector_space(K, polynomials) #3717
• Tweak vector_space(K, polynomials) a bit more #3727
• Adv/update serialization docs #3793
• To fix issue with Betti Tables #3800
• add a paragraph about CTRL-C in Julia and GAP #3814