Meta Ticket on IntegralLattices / QuadraticFormModules
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
IntegralLattice
es
- #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
- #28942 Maximal even overlattice
- #24108 quadratic form from invariants
- #28952 Rational representative for a genus
- #29279 make doctests of fqf_orthogonal groups independent of the generators
- #27358 Memory leak in sage.groups.matrix_gps.isometries
- #29609 Compute the Conway mass directly from the genus symbol.
- #29611 Direct sum for genus symbols
- #30669 Remove ambiguous conversions for fqf_orthogonal groups
- #30743 fix warnings and breaking conditions for neighbor method
- #30842 genus representatives
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