Opened 2 years ago

Last modified 2 months ago

#23968 new enhancement

Meta Ticket on IntegralLattices / QuadraticFormModules

Reported by: sbrandhorst Owned by:
Priority: major Milestone: sage-8.1
Component: linear algebra Keywords:
Cc: roed, annahaensch Merged in:
Authors: Simon Brandhorst Reviewers:
Report Upstream: N/A Work issues:
Branch: Commit:
Dependencies: Stopgaps:

Description (last modified by sbrandhorst)

This meta ticket keeps track of all the tickets related to IntegralLattice development. Here a lattice is a ZZ-Module L isomorphic to ZZ^n, equipped with a non-degenerate, symmetric bilinear form L x L --> ZZ.

  • #27876 improved printing for integral lattices
  • #25875 constructor for the genus from a symbol
  • #25682 access methods to the genus
  • #25684 FGP_module transformation to and from the user defined generators
  • #25698 locally automorphous numbers of a genus
  • #25776 bug in printing of a genus symbol
  • #25888 bugs in equivalence testing of binary quadratic forms
  • #25890 wrong results in BinaryQF_reduced_representatives
  • #26378 bugs in the mass formula
  • #25569 speed up creation of TorsionQuadraticModules
  • #24890 Tensor product of two lattices
  • #24888 Construct a torsion quadratic or bilinear form - from a genus
  • #24889 Enumerate all genera of given signature, determinant and bounded scale of a jordan block.
  • #24868 p-neighbors
  • #24864 bug in normal_form
  • #24821 _mul_ for FGP_Modlue_class
  • #24859 all_overlattices
  • #24858 enumeration of all submodules of TorsionQuadraticModule
  • #24810 _mul_ for integral lattices rescaling the basis
  • #24818 yet another bug in the genus class
  • #24788 Twist of lattice
  • #25014 Twist of a TorsionQuadraticModule
  • #24702 bug: saturation and intersection live in wrong ambient module
  • #24571 Orthogonal groups of TorsionQuadraticModules
  • #24577 is_genus for TorsionQuadraticModules
  • #24576 Brown invariant of a TorsionQuadraticModule
  • #24564 Primitive extensions
  • #24150 Factory function for lattices A,D,E etc.
  • #24521 Abelian groups with gap
  • #24087 Automorphism group of finite (additive) abelian groups.
  • #24083 Factory function for TorsionQuadraticForms
  • #24082 Interaction TorsionQuadraticModules vs Genus
  • #24036 orthogonal groups for IntegralLattices
  • #24035 orthogonal decomposition for TorsionQuadraticModules
  • #23981 use _mul_ for the inner_product in FreeQuadraticModules
  • #23967: Coercion pushout for FGP_modules
  • #23576 bug in vector matrix multiplication for free module elements
  • #23699 base class for torsion quadratic modules
  • #23958 allow the inner product to take value in rings different from the base ring.
  • #23955 bug in the Genus class
  • #23916 print a genus using the Conway Sloane symbols
  • #23376 bug in genera equality testing
  • #23915 use the inner_product_matrix to compare ambient spaces
  • #23634 a class for IntegralLatticees
  • #22720 bug in annihilator() for the trivial abelian group
  • #23944 QQ/ZZ, QQ/2ZZ or QQ/nZZ as abelian groups.
  • #28611 representative computation for genus symbols
  • #24108 quadratic form from invariants

The following tickets are not related directly to IntegralLattices however they are indirectly as they consider Free(Quadratic)Modules which are more general. Or bugs for Free(Quadratic)Modules that might effect Lattices:

  • #11579 Free module equality, comparisons
  • #23978 Rich comparison for Modules
  • #9576 Allow the operator & for submodule intersections.
  • #7516 bug in pickling quotient module over pid
  • #13853 Correct FreeModule.coordinates() to match specification
  • #10606 Trouble with deepcopy of vectorspaces where the inner product matrix is specified, see also #10577 might be related to
  • #14681 dumps doesn't save immutability for Matrix_mod2_dense
  • #21217 Point lattices (free Z-modules) generated by algebraic real vectors
  • #16893 Free modules over PIDs
  • #6452 Submodules of (ZZ/nZZ)r
  • #18310 Finite dimensional modules with basis: improved conversions to vectors and matrices
  • #11538 Improve efficiency of fgp_module over integers

Change History (45)

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