File gap-xmod.changes of Package gap-xmod

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File gap-xmod.changes of Package gap-xmod

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Tue Jan 23 16:19:42 UTC 2024 - Jan Engelhardt <jengelh@inai.de>

- Update to release 2.92
  * Added methods for WhiteheadXMod etc. for xmods which are not
    permanent xmods
  * Now using the NC version of PreImagesRepresentative

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Sun Jun 25 10:05:29 UTC 2023 - Jan Engelhardt <jengelh@inai.de>

- Update to release 2.91
  * added a chapter on double groupoids with operations 
    EnhancedBasicDoubleGroupoid, DoubleGroupooidWithZeroBoundary
  * added PreXModWithTrivialRange

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Sat Feb 11 11:05:02 UTC 2023 - Jan Engelhardt <jengelh@inai.de>

- Update to release 2.89
  * added RegularActionHomomorphism(Object/2DimensionalGroup)

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Sat Nov 19 01:29:13 UTC 2022 - Jan Engelhardt <jengelh@inai.de>

- Update to release 2.88
  * Lots of new and renamed functions

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Mon Dec 25 16:44:31 UTC 2017 - jengelh@inai.de

- Update to new upstream release 2.6.4
  * fixed tests to work with both 4r8 and dev in 3 options
  * removed attribute AutoGroup (=Range(XModAction)) for xmods
  * added operations SinglePiecePreXModWithObjects(NC)
  * added Root2dGroup for prexmods with objects 
  * ImageElmXModAction now works for xmods of groupoids
  * added operation ImageElmXModAction
  * renamed test files and made them independent

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Fri Sep  8 20:19:50 UTC 2017 - jengelh@inai.de

- Update to new upstream release 2.62
  * Replaced PreXModIsomorphismByIsomorphisms by the more general
    IsomorphismByIsomorphisms; then functions such as
    IsomorphismPerm2DimensionalGroup rewritten to use it.
  * Added IsomorphismByIsomorphisms for pre1-cat-groups
  * New functions added for crossed square <-> cat2-group:
    ConjugationActionForCrossedSquare;
    ElementsRelationsForSemidirectProduct
  * Added CoproductInfo for coproducts FactorXMod now
    FactorPreXMod (ditto NaturalMorphisms)
  * Added Is2dGroupMorphismData and modified construction
    functions Method for IsNormal now applies to precrossed
    modules added PeifferSub2dGroup
  * Added operation DiagonalCat1 and example S3xS3 => S3
  * Added operation CoproductXMod and files `coprod.g`,
    `coprod.tst`

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Sat Apr 29 23:40:33 UTC 2017 - jengelh@inai.de

- Update to new upstream release 2.59
  * added property IsEndomorphismPreCat1
  * modified IsomorphismPerm2dGroup for PreCat1 objects

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Mon Nov 21 21:10:02 UTC 2016 - jengelh@inai.de

- Update to new upstream release 2.58
  * added files hap.gd, hap.gi

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Wed Jun  8 20:54:47 UTC 2016 - jengelh@inai.de

- Update to new upstream release 2.56
* remove functions from util.g(d/i) now in Utils; require Utils

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Sat Mar 12 20:07:05 UTC 2016 - jengelh@inai.de

- Update to new upstream release 2.51
* renamed Rank and MiddleLength and now for p-groups only
* XPair -> XPairing, etc.
* IsomorphismPermPre(XMod/Cat1) -> IsomorphismPerm2dGroup, etc.
* IsStemGroup & IsStemXMod -> IsStemDomain etc.
* RestrictionMappingGroups -> GeneralRestgrictedMapping
* CentralQuotient now a crossed module or a crossed square
* added LeftRightMorphism and UpDownMorphism for crossed squares
* methods for InnerMorphism, ActorXMod, CentreXMod, etc.
  now specified only for permutation crossed modules

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Tue Dec  8 16:57:19 UTC 2015 - jengelh@inai.de

- Update to new upstream release 2.44
* added Centralizer and Normalizer methods for crossed modules
* added ExternalSetXMod
* added operation Displacement
* added AllStemGroupFamilies and Set various Names
* added NaturalHomomorphismByNormalSubXMod
* added CrossActionSubgroup

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Sun Feb 22 11:35:17 UTC 2015 - jengelh@inai.de

- Update to new upstream release 2.31
* Metadata update (homepage URL) only

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Fri Feb  7 16:54:11 UTC 2014 - jengelh@inai.de

- Update to new upstream release 2.26
* minor mod to WhiteheadTransMonoid to fix gp2up.tst output
* fixed errors in cat1data.g reported by Van Luyen Le.
* fixed error in Cat1MorphismByXModMorphism.
* completed work on groups of order [64..70] in cat1data.g
* added operation CollectPartsAlreadyDone.
* added operation PreCat1IsomorphismByIsomorphisms.
* fixed bug in PermCat1Select sent by Van Luyen Le
* put groups of order 64 back into cat1data.g
* rewrite of testall.g following Alex K's wedderga example

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Fri May 10 13:47:02 UTC 2013 - jengelh@inai.de

- Split xmod (version 2.22) off the gap RPM package

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