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| Name: gap-polycyclic | Distribution: SUSE Linux Enterprise 16 |
| Version: 2.16 | Vendor: openSUSE |
| Release: bp160.1.9 | Build date: Sat Nov 19 01:50:37 2022 |
| Group: Productivity/Scientific/Math | Build host: reproducible |
| Size: 2173675 | Source RPM: gap-polycyclic-2.16-bp160.1.9.src.rpm |
| Packager: https://bugs.opensuse.org | |
| Url: https://gap-packages.github.io/polycyclic/ | |
| Summary: GAP: Computation with polycyclic groups | |
The Polycyclic package provides a basis for working with polycyclic groups defined by polycyclic presentations. The features of this package include * creating a polycyclic group from a polycyclic presentation * arithmetic in a polycyclic group * computation with subgroups and factor groups of a polycyclic group * computation of standard subgroup series such as the derived series, the lower central series * computation of the first and second cohomology * computation of group extensions * computation of normalizers and centralizers * solutions to the conjugacy problems for elements and subgroups * computation of Torsion and various finite subgroups * computation of various subgroups of finite index * computation of teh Schur multiplicator, the non-abelian exterior square and the non-abelian tenor square
GPL-2.0-or-later
* Sat Nov 19 2022 Jan Engelhardt <jengelh@inai.de>
- Update to release 2.16
* Add support for random sources to Random method for pcp-groups.
* Documented IsPcpGroup and IsPcpElementCollection.
* Increased rank for IsomorphismPcGroup and IsomorphismFpGroup
methods for pcp-groups, to ensure they are still used when
all GAP packages are loaded.
* Fix a bug in `NormalIntersection` which could lead to wrong
results; this also affected other operations, such `Core`,
`Intersection`.
* Fix `PreImagesRepresentative` for trivial homomorphisms (it
used to return the identity fo the source as preimage for all
elements in the range, instead of returning fail for all but
the identity of the range).
* Thu Nov 15 2018 Jan Engelhardt <jengelh@inai.de>
- Update to new upstream release 2.14
* Improved performance of some orbit algorithms by using
dictionaries.
* Improved performance of AddToIgs for some examples where it
previously performed very badly.
* Added custom IsSingleValued method for group homomorphisms
whose Source is an polycyclic groups, which can avoid an
endless loop when the range is an infinite group.
* Fixed bug in NormalizerPcpGroup, ComplementClassesCR,
OrbitIntegralAction, and StabilizerIntegralAction, which
could result in a break loop.
* Fixed bug in AddToIgs for infinite groups which could result
in an invalid output leading to strange results.
* Fixed IsConjugate for pcp group elements to always return
true and false (instead of an element which conjugates the
inputs to each other).
* Deprecated NaturalHomomorphism, use
NaturalHomomorphismByNormalSubgroup instead (which is a
standard GAP operation).
* Replaced immediate methods for IsTorsionFree and
IsFreeAbelian by implications, which have zero overhead,
while immediate methods can slow down GAP.
* Improved performance of UnitriangularPcpGroup for large n
* Fixed a bug in OneCoboundariesCR which lead to an error in
OneCohomologyCR.
* Fixed a bug where the normal closure of an abelian subgroup
could end up being flagged as abelian, even though it was not.
* Fri May 10 2013 jengelh@inai.de
- Split polycyclic (version 2.11) off the gap RPM package
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