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| Name: gap-twistedconjugacy | Distribution: openSUSE Tumbleweed |
| Version: 3.4.2 | Vendor: openSUSE |
| Release: 1.1 | Build date: Wed Sep 9 19:40:38 2026 |
| Group: Productivity/Scientific/Math | Build host: reproducible |
| Size: 1317215 | Source RPM: gap-twistedconjugacy-3.4.2-1.1.src.rpm |
| Packager: https://bugs.opensuse.org | |
| Url: https://stertooy.github.io/TwistedConjugacy/ | |
| Summary: GAP: Computation with twisted conjugacy classes | |
The TwistedConjugacy package provides methods for solving the twisted conjugacy problem (including the "search" and "multiple" variants) and for computing Reidemeister classes, numbers, spectra, and zeta functions. It also includes utility functions for working with (double) cosets, group homomorphisms, and group derivations. These methods are primarily designed for use with finite groups and with PcpGroups (finite or infinite) provided by the Polycyclic package.
GPL-2.0-or-later
* Wed Sep 09 2026 Jan Engelhardt <jengelh@inai.de>
- Update to release 3.4.2
* `ExtendedReidemeisterSpectrum` is now more efficient for
non-2-generated finite soluble groups and for quasisimple
groups.
* `CoincidenceReidemeisterSpectrum( H, G )` is now more efficient
when `G` is trivial or abelian, and when `H` = `G` is
quasisimple.
* Fixed a bug in `RepresentativeTwistedConjugation` that could
lead to errors.
* Fixed an assertion in `CoincidenceGroup`.
* Fixed a bug in `RepresentativesTwistedConjugacyClasses` where
the returned representatives could lie outside the given normal
subgroup `N`.
* `ReidemeisterNumber` will now return `infinity` immediately if
called for homomorphisms whose source has smaller Hirsch length
than their range.
* Fixed a bug in `RepresentativesEndomorphismClasses` and
`RepresentativesHomomorphismClasses` that could lead to wrong
results.
* Sun Jul 05 2026 Jan Engelhardt <jengelh@inai.de>
- Update to release 3.4.0
* Improved `ReidemeisterNumber` for pairs of homomorphisms where
both source and range have their conjugacy classes precomputed.
* Improved `CoincidenceReidemeisterSpectrum` for non-abelian
groups.
* Tue May 12 2026 Jan Engelhardt <jengelh@inai.de>
- Update to release 3.3.2
* Slightly improved `DoubleCosetIndex` for finite groups.
* Wed May 06 2026 Jan Engelhardt <jengelh@inai.de>
- Update to release 3.3.1
* Added a better implementation of `ExtendedReidemeisterSpectrum`
and `CoincidenceReidemeisterSpectrum` for finite simple groups.
* Tue Apr 14 2026 Jan Engelhardt <jengelh@inai.de>
- Update to release 3.3.0
* Add a better implementation of `IsFinite` for twisted conjugacy
classes, double cosets, orbits of affine actions and group
derivation images.
* `ReidemeisterNumber` now immediately returns infinity if the
source group is finite but the range group is infinite.
* Tue Feb 17 2026 Jan Engelhardt <jengelh@inai.de>
- Update to release 3.2.0
* Renamed many of the existing functions available for
Reidemeister zeta functions.
* Added support for Reidemeister generating functions.
* Wed Oct 15 2025 Jan Engelhardt <jengelh@inai.de>
- Update to release 3.1.1
* Affine actions can now be compared using the equality (=)
operator.
* Improvements to the documentation of derivations and affine
actions.
* Sat Oct 11 2025 Jan Engelhardt <jengelh@inai.de>
- Initial package (version 3.1.0) for build.opensuse.org
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Fabrice Bellet, Thu Sep 17 23:56:17 2026