Spracherkennung für: .md vermutete Sprache: Masm {Masm[55] Python[44] R[44]} [Methode: maximale Elemente, drei Dimensionen]
# CHANGES to the
'groupoids' package
##
Version 1.
79 for GAP
4.
14.
0 (
11/
09/
25)
* (
11/
09/
25) added operation GroupoidInnerAutomorphismNormalSubgroupoid
* (
10/
09/
25) added new release mechanism file .github/workflows/release.yml
* (
22/
07/
25) revised
code and examples of GroupoidInnerAutomorphism
* (
21/
07/
25) added GroupoidAutomorphismByNtuple(NC)
added HomogeneousDiscreteSubgroupoid
* (
18/
07/
25) started work on groupoid actions
##
Version 1.
78 for GAP
4.
14.
0 (
18/
07/
25)
* (
17/
07/
25) documented some missing categories in the manual
##
Version 1.
77 for GAP
4.
14.
0 (
03/
07/
25)
* (
03/
07/
25) made extensive changes to the examples in folder tst/manual
added operation IsFullSubgroupoid(gpd,subgpd)
Subgroupoid now checks
for SubgroupoidWithRays
SubgroupoidByPieces now copes with mixed piece
data
added method
for \=
for two groupoid homomorphisms
documented the operation PiecePositions
revised HomomorphismByUnion - deals with many pieces
##
Version 1.
76 for GAP
4.
13.
1 (
23/
09/
24)
* (
23/
09/
24) fix error caused re immutable ExtRepOfObj by GAP pull #
5808
##
Version 1.
74 for GAP
4.
12.
2 (
09/
02/
23)
* (
23/
01/
24) avoid trivial function wrappers
; correct email address
##
Version 1.
73 for GAP
4.
12.
2 (
09/
02/
23)
* (
09/
02/
23) first attempt at basic double groupoids
* (
27/
01/
23) added RegularActionHomomorphismGroupoid
and used in gpdhom.tst
* (
23/
12/
22) changed email address
and other personal details
##
Version 1.
71 for GAP
4.
11.
1 (
07/
08/
22)
* (
07/
08/
22) now requiring
version 0.
76 of Utils
major revision of left, right
and double cosets
##
Version 1.
69 for GAP
4.
11.
1 (
15/
11/
21)
* (
30/
06/
22) renamed GpdIsDigraph etc as IsGroupoidDigraph
* (
15/
11/
21) moved package homepage to
https://github.com/gap-packages/groupoids
* (
15/
11/
21) replaced IsDiscrete by IsDiscreteMagmaWithObjects
* (
13/
04/
21) changed nicemap.tst to cope with alternative NiceMonomorphisms
* (
08/
04/
21) Switch CI to use GitHub Actions
##
Version 1.
68 for GAP
4.
10.
2 (
04/
09/
19)
* (
12/
07/
19) fixed errors in tests introduced in gapdev
##
Version 1.
67 for GAP
4.
10.
1 (
17/
06/
19)
* (
16/
06/
19) added Utils to the required packages
##
Version 1.
66 for GAP
4.
10.
1 (
29/
05/
19)
* (
18/
04/
19) reorganised all .tst files into /tst/manual/
and /tst/extra/
* (
08/
04/
19) AutomorphismGroupoidOfGroupoid
for homogeneous
union
* (
05/
04/
19) methods
for IsInjective, IsSurjective
for groupoid homs
* (
03/
04/
19) methods
for homomorphisms of IsGroupoidByIsomorphisms
* (
26/
03/
19) added (Is)GroupoidByIsomorphisms with test
and manual entry.
* (
24/
03/
19) extended IsomorphismStandardGroupoid to a
union of pieces
* (
21/
03/
19) added operation IsomorphismGroupoids
##
Version 1.
65 for GAP
4.
10.
0 (
05/
03/
19)
* (
05/
03/
19) added attribute RightActionGroupoid
* (
16/
02/
19) added License field in PackageInfo.g
##
1.
61 ->
1.
63 (
23/
10/
18)
* (
23/
10/
18) Added ReducedImageElm
for IsMappingToFreeProductWithAmalgamation
IsFpaGroup now IsFreeProductWithAmalgamation
; sim. IsHnnGroup
* (
15/
10/
18) Undid previous commit
; revised FreeProductWithAmalgamation(Op)
and made similar changes to HnnExtension(Op)
inc. Embeddings
FpaInfo is now FreeProductWithAmalgamationInfo
; sim. HnnInfo
##
1.
59 ->
1.
61 (
09/
10/
18)
* (
09/
10/
18) Added
'GGRWS' to
'FreeProductWithAmalgamation',
'HnnExtension'
##
1.
57 ->
1.
59 (
13/
09/
18)
* (
13/
09/
18) GroupoidAutomorphismByObjectPerm method
for groupoid with rays
* (
13/
09/
18) removed dependency on Utils - but still used by xtst/testextra.g
* (
12/
09/
18) removed attribute InverseOfIsomorphismFpSemigroup
* (
11/
09/
18) added AutomorphismGroupoidOfGroupoid
for homogeneous groupoids
* (
05/
09/
18) replaced SmallGroup(
8,
4) with QuaternionGroup(
8)
##
1.
55 ->
1.
57 (
28/
08/
18)
* (
28/
08/
18) removed Semigroups from SuggestedOtherPackages (temporarily?)
* (
10/
05/
18) added attribute PieceIsomorphisms
for homogeneous dwos
* (
09/
05/
18) added attribute ParentMappingGroupoids
for restricted mappings
##
1.
54 ->
1.
55 (
02/
02/
18)
* (
01/
02/
18) renamed test files in folder xtst/
* (
30/
01/
18) Rewrote to Left(Right)CosetRepresentatives(FromObject)
* (
24/
01/
18) Corrections to methods
for RightCoset
and LeftCoset
* (
18/
01/
18) Removed HomsetCosetsGroupoidCoset + old IsHomsetCosetsType
* (
17/
01/
18) Operation RayElementsOfGroupoid now Attribute RaysOfGroupoid
and Attribute RaysOfGroupoid now Operation RayArrowsOfGroupoid
* (
11/
01/
18) now using AutoDoc to build the manual
* (
21/
12/
17) changed HomsetCosets from IsPositionalObjectRep
corrected SubgroupoidByPieces when rays are involved
* (
19/
12/
17)
add IsomorphismNewObjects method
for hom discrete
methods
for \in
for AutomorphismGroupOfGroupoid
* (
15/
12/
17) removed examples/*.g
; added expt/; .xtst files not in xtst/
split off autogroup functions from gpdhom.g{d,i} to gpdaut.g{d,i}
* (
14/
12/
17) added method
for \in
for automorphisms of groupoids
##
1.
53 ->
1.
54 (
29/
11/
17)
* (
29/
11/
17) revised manual Ch.
5; added test to GroupoidHomomorphism; release!
* (
27/
11/
17) added MappingGeneratorsImages method
for hom discrete mappings
* (
18/
10/
17) fixed bug in DiscreteSubgroupoid
; RestrictedMapGpd now in manual
* (
17/
10/
17) added other method
for GroupoidInnerAutomorphism(R,S,r)
;
* (
16/
10/
17) added method
for RestrictedMappingGroupoids
for homdisc
* (
12/
10/
17) added DirectProductOp
for groupoids
; Projection & Embedding
* (
11/
10/
17) added MappingWithObjectsByFunction
and associated prop/attr
and
then added new manual section on the inner automorphism group
* (
09/
10/
17) added operation GroupoidInnerAutomorphism
##
1.
52 ->
1.
53 (
04/
10/
17)
* (
03/
10/
17) added section
5.
5 to the manual: matrix reps of groupoids
* (
29/
09/
17) test files back to original names
and made independent
* (
27/
09/
17) introduced lots of Types
and adjusted Objectify commands
##
1.
51 ->
1.
52 (
21/
09/
17)
* (
21/
09/
17) revised HomomorphismToSinglePiece
and associated functions
* (
21/
09/
17) SinglePieceMappingData now MappingToSinglePieceData
* (
21/
09/
17) revised IsomorphismPermGroupoid
and added IsomorphismPcGroupoid
* (
20/
09/
17) revised RestrictedMappingGroupoids
* (
13/
09/
17) removed (essentially unused) attribute HomsOfMapping
* (
13/
09/
17) now method
for Size works
for all magmas with objects
* (
12/
09/
17) revised methods
for GeneratorsOfMagmaWithObjects etc.
* (
05/
09/
17) added lots of new default types, avoiding NewType(fam,filter)
's
* (
05/
09/
17) added properties IsMagmaWithObjectsInPieces etc
* (
05/
09/
17) op TypeOfDomainWithObjects -> attribute KindOfDomainWithObjects
* (
04/
09/
17) revised the various category structures, so operations
IsArrowIn
and IsElementInGroupoid now replaced by \in
* (
27/
08/
17) GGHead/GGTail renamed Head/TailOfGraphOfGroupsWord
* (
25/
08/
17) converted aut-test.g, hom-tst.g to .xtst
; added tst/testextra.g
* (
18/
08/
17) provided a method
for <
for groupoid elements
* (
14/
08/
17) redesign of homs proceeds : new InverseGeneralMapping
for isos
* (
11/
09/
17) PieceImages -> SinglePieceMappingData
* (
08/
08/
17) testall.g copied to testing.g
; testall now calls TestDirectory
##
1.
46 ->
1.
51 (
06/
08/
17)
* (
06/
08/
17)
version 1.
51 released -
for GAP
4.
8.
8
* (
03/
07/
17) README
and CHANGES now in MarkDown format as .md files
* (
14/
06/
17) added various methods
for String, ViewString, PrintString
* (
07/
04/
17) renamed the package
'groupoids' so most files needed editing
##
1.
45 ->
1.
46 (
21/
02/
17)
* (
21/
02/
17) removed method
for IsCommutative from `gpd.gi`
which was causing slowdown in one of the main GAP tests
##
1.
43 ->
1.
45 (
02/
11/
16)
* (
02/
11/
16) improved RestrictedMappingGroupoids
* (
01/
11/
16) added IsomorphismStandardGroupoid to `gpdhom.g{d,i}`
;
GroupoidAutomorphismByRayImages->GroupoidAutomorphismByRayShifts
;
SinglePieceGroupoidByGenerators->SinglePiceSubgroupoidByGenerators
;
improved RestrictedMappingGroupoids
* (
18/
10/
16) now using bibliography file `bib.xml` of type `bibxmlext.dtd`
* (
12/
10/
16) changed package releases to <
https://gap-packages.github.io/gpd>
* (
03/
10/
16) ImagesOfRays renamed ImageElementsOfRays
* (
28/
04/
16) replaced Image(hom,x) with ImageElm(hom,x) throughout
* (
28/
04/
16) moved AutomorphismGroup methods to AutomorphismGroupOfGroupoid
* (
27/
04/
16) added EmbeddingsInNiceObject
* (
14/
04/
16) converted cases of \in to new InAutomorphismGroupOfGroupoid
##
1.
41 ->
1.
43 (
16/
03/
16)
* (
16/
03/
16) dealt with new diffs in test files
* (
18/
02/
16) removed
date/
version info from file headers
* (
15/
02/
16) Added method
for ImagesRepresentative( gpdhom, arrow )
##
1.
36 ->
1.
41 (
09/
02/
16)
* (
04/
02/
16) replacing test IsScalar
for objects with IsObject/IsSet
added examples in section
4.
1.
1 where the objects are
free group generators
or strings
* (
12/
01/
16) renamed some ENTITYs in `PackageInfo.g`
##
1.
35 ->
1.
36 (
23/
11/
15)
* (
23/
11/
15) new method
for ObjectGroupHomomorphism
* (
23/
11/
15) converted RootObject from an operation to an attribute
* (
23/
11/
15) renamed IsDigraph etc as GpdIsDigraph as requested by James
* (
16/
11/
15) RestrictionMappingGroupoids -> RestrictedMappingGroupoids
* (
15/
11/
15) added method
for WeightedAdjacencyMatrix
for FpWeightedDigraphs
* (
15/
11/
15) added PrintObj & Viewobj
for groupoid right cosets
* (
04/
11/
15) removed RestrictionMappingGroups: now GeneralRestrictedMapping
* (
28/
10/
15) added MathJax to `makedocrel.g`
* (
01/
09/
15) major edits to `README`, including GitHub issues link
##
1.
34 ->
1.
35 (
24/
08/
15)
* (
24/
08/
15) packed up
version 1.
35 prior to move from Bitbucket to Github
* (
11/
06/
15) removed GroupoidHomomorphismByGroupHom
and increased the
number of options recognised by GroupoidHomomorphism
* (
10/
06/
15) fixed errors in NormalFormGGRWS
for fpa-
and hnn-groups
* (
10/
06/
15) added methods
for ReplaceOnePieceInUnion,
and a new excample
* (
10/
06/
15) made various improvements to the manual
* (
10/
06/
15) renamed RootObjectHomomorphism as RootGroupHomomorphism
##
1.
32 ->
1.
34 (
05/
06/
15)
* (
05/
06/
15) added method
for GeneratorsOfMagma
for a magma with objects
* (
05/
06/
15) attempted fix of problem with NormalFormGGRWS
* (
02/
06/
15) `PackageInfo.g` :
'gpd' is now an accepted package
* (
02/
06/
15) converted the bibliography to BibXMLext format
and added an URL to Emma
's thesis (`moore.ps.gz`)
* (
02/
06/
15) Fixed typos in the manual reported by the referee
##
1.
31 ->
1.
32 (
03/
02/
15)
* (
03/
02/
15) changed
'InversesIfNonzero' to
'Inverse' in category names
##
1.
23 ->
1.
31 (
17/
12/
14)
* (
17/
12/
14) moved package homepage to <pages.bangor.ac.uk/~mas023/chda/gpd/>
* (
26/
11/
14) changed Arrow to ArrowNC in GeneratorsOfMagmaWithObjects
##
1.
22 ->
1.
23 (
03/
07/
14)
* (
03/
07/
14) updated chapter
6 in the manual: Technical Notes
* (
02/
07/
14) realised that rays are arrows so swapped the names:
RaysOfGroupoid with RayElementsOfGroupoid
* (
02/
07/
14) added second Kd8method
for IsHomogeneousDomainWithObjects
* (
01/
07/
14) renamed MultiplicativeElementWithObjects as Arrow,
IsElementOfMagmaWithObjects as IsArrowIn,
GroupoidElement no longer needed: use Arrow,
IdentityElement as IdentityArrow,
ConjugateGroupoidElement as ConjugateArrow.
note that IsGroupoidElement still remains (not visible to users).
* (
25/
06/
14) modified HomogeneousGroupoid(gpd,oblist) so that the initial gpd
is no longer automatically included in the output
* (
13/
05/
14) modified HomogeneousGroupoid
and ReplaceOnePieceInUnion
* (
07/
05/
14) added IsMatrixGroupoid
* (
27/
11/
13) added semigroups package to SuggestedOtherPackages (Needed...?)
##
1.
19 ->
1.
22 (
20/
11/
13)
* (
20/
11/
13) Adjusted flip function in `mwohom.g`
and `mwohom.tst`.
* (
10/
05/
13) Added method
for ImageElm
for mwohoms
and more than one piece.
* (
09/
05/
13) Added IsElementOfMagmaWithObjects (in place of \in).
* (
08/
05/
13) Renamed (again) Arrowelt -> ElementOfArrow, etc.
* (
07/
05/
13) Started to fix a whole set of typos in the manual.
##
1.
17 ->
1.
19 (
11/
03/
13)
* (
11/
03/
13) Minor modifications to test files to fix differences.
* (
06/
02/
13) Changed IsDiscreteDomainWithObjects to be false when there
is only one object,
and now there are diffs in tests!
* (
05/
02/
13) rewrite of `testall.g` following Alex K
's wedderga example
* (
24/
01/
13) Brought back tests
for graphs of groupoids
and their words,
and added a section on these to `examples/ggraph.g`.
* (
23/
01/
13) Made changes to PrintObj
for groupoids.
* (
22/
01/
13) Fixed problem with IsHomomorphismFromSinglePiece.
Made changes to PrintObj
and Display methods.
##
1.
16 ->
1.
17 (
14/
01/
13)
* (
12/
01/
13) Converted Vertices
and Arcs back from Attributes to Operations
(otherwise there is a clash with the Grape package).
##
1.
15 ->
1.
16 (
09/
01/
13)
* (
09/
01/
13) corrected output in test files (words in fp-groups are now
factorised where possible)
and finalised
version 1.
16.
* (
24/
10/
12) ??? Remove subgpds as input parameter
for GraphOfGroupoids ???
* (
23/
10/
12) Added attribute WeightedAdjacencyMatrix
for digraphs
and operation ArcsFromAdjacencyMatrix
Removed subgps as input parameter
for GraphOfGroups,
so attribute SubgroupsOfGraphOfGroups is redundant.
* (
27/
06/
12) Added operation EndoMappingToOne
##
1.
14 ->
1.
15 (
09/
06/
12)
* (
09/
06/
12) Added test
for trivial groups in InclusionMappingGroups
* (
08/
06/
12) Removed IdentitySubgroup
and used TrivialSubgroup instead,
following email from Max Horn
Similarly replaced Identity with Trivial in the operations
FullIdentitySubgroupoid
and DiscreteIdentitySubgroupoid
##
1.
13 ->
1.
14 (
23/
04/
12)
* (
20/
04/
12) Corrected ImageElm
for single-piece groupoid elements.
* (
18/
04/
12) Replaced ReadTest with Test in `testall.g`
* (
12/
01/
12) Experimentally added method
for IsCommutative to `gpd.gi`
for the case of a group handled by a nice monomorphism.
* (
12/
01/
12) Edited examples in `gpdhom.g`, `gpdhom2`.g, `gpdhom.tst`, `gpdhom.xml`
* (
16/
12/
11) Fixed error in method
for IsHomogeneousDomainWithObjects
##
1.
12 ->
1.
13 (
14/
12/
11)
* (
09/
12/
11) Added AutomorphismGroup
and NiceObjectAutoGroupGroupoid methods
for homogeneous discrete groupoids
* (
03/
12/
11) Added ObjectGroupHomomorphism
Renamed IsMappingWithObjectsRep as IsMappingWithPiecesRep
Improved methods
for \=
and Display
for groupoid morphisms.
* (
01/
12/
11) Added functions
for homogeneous, discrete groupoids
and their morphisms.
* (
30/
11/
11) IsDiscreteDomain now IsDiscreteDomainWithObjects.
Added IsHomogeneousDomainWithObjects.
GroupoidAutomorphismByRayImages now includes its order.
* (
29/
11/
11) removed Emma
's email address
now using package directory in the format `.../gpd-
1.
13/`
and archive files in the format `gpd-
1.
13.tar`
##
1.
09 ->
1.
12 (
21/
09/
11)
* (
20/
09/
11) new
version of `makedocrel.g`
for building the manual
added file `gpd/examples/readall.g`
for testing purposes
##
1.
08 ->
1.
09 (
17/
09/
11)
* (
17/
09/
11) Shortened the banner
* (
16/
09/
11) Renamed subdirectory `gpd/gap` as `gpd/lib`
Status of package now specified as
"submitted".
* (
13/
09/
11) Added fga as a required package (used by `tst/gpd.tst`).
##
1.
07 ->
1.
08 (
06/
09/
11)
* (
06/
09/
11) Changed IsGraphOfGroups to IsGraphOfGroupsRep
and introduced category IsGraphOfGroups
and GraphOfGroupsFamily,
and similarly
for IsGraphOfGroupoids.
* (
04/
09/
11) Changed BIND_GLOBAL to BindGlobal, since it is
'safer'
* (
16/
08/
11) Changed directory
for archive to `.../chda/gap4r5/gpd/`
##
1.
05 ->
1.
07 (
08/
07/
11)
* (
08/
07/
11) Changed RootHomomorphism to RootObjectHomomorphism
and
added new operation RootHomomorphism.
* (
07/
07/
11) Extended GroupoidAutomorphismByObjectPerm to rays case.
Corrected \*
and ImageElm
for gpd homs in the rays case.
Removed lists of known properties from test files
since the answers change after LoadAllPackages()
;
* (
06/
07/
11) Used RayImages instead of RayProducts
for gpd homomorphisms.
Improved GroupoidAutomorphismByRayImages(NC).
* (
26/
06/
11) Implemented easy case of SinglePieceGroupoidByGenerators,
and used
this to rewrite ConjugateGroupoid.
* (
22/
06/
11) Changed examples in `gpd.g`, `gpdhom.g`
and the test versions.
Added GroupoidHomomorphismFromSinglePiece (non NC
version).
* (
15/
06/
11) Changed to ObjectifyWithAttributes in HomToSinglePieceNC.
Various edits in `mwohom.gi`
and `gpdhom.gi`
* (
12/
06/
11) Improved InclusionMappingGroupoids.
* (
10/
06/
11) Redid
version and copyright lines in all files.
* (
27/
05/
11) Extensive revisions
and additions to chapter
4 of the manual.
Fixed bugs in FullSubgroupoid etc (swapping gps with obs).
Fixed some subgroupoid functions, using IsList instead of
IsHomogeneousList, since the groups may be of differing types.
* (
20/
05/
11) Fixed bug in IsomorphismNewObjects, using Set().
Rewrote the method
for Ancestor.
* (
16/
05/
11) Added method
for IsWide in mwo.gi
* (
12/
05/
11) Started tidying up a
version to test with GAP
4.
5 beta.
* (
09/
02/
11) Fixed \=
for groupoids with IsSinglePieceRaysRep.
* (
28/
01/
11) Renamed GroupoidHom..ByObjectImages as ....ByObjectPerm.
Improved ImageElm
for groupoid homomorphisms.
Improved InverseGeneralMapping
for groupoid homomorphisms.
* (
27/
01/
11) Big changes to groupoid homomorphisms, with the idea that
only simple functions should be provided,
and more complicated
morphisms constructed by composition:
- added GroupoidHomomorphismByGroupHom,
- removed GroupoidHomomorphismFromSinglePiece,
- rewrote global function GroupoidHomomorphism.
* (
26/
01/
11) Added operations RootGroup
and RaysOfGroupoid.
Rewrote SubgroupoidWithRays.
Renamed LeftProdsOfRays as RayProducts,
and .rayConjugators as .rays .
* (
22/
01/
11) Changed AutomorphismGroup
and NiceObjectAutoGroupGroupoid
by putting the group automorphisms before the object perms.
* (
20/
01/
11) Finished new
version of AutomorphismGroup
for a groupoid:
includes function: NiceObjectAutoGroupGroupoid.
* (
19/
01/
11) Renamed the
08.
05 functions GroupoidMappingBy...
as GroupoidAutomorphismBy...
and did major editing.
* (
14/
01/
11) Constructed
rep of the automorphism group of a groupoid
as a quotient of a semidirect product of perm groups
(i.e. implementing Prop.
3.
1 in Alp/Wensley
2010).
* (
13/
01/
11) Corrected IdentityMapping
for groupoids.
Fixed ParentAttr in FullSubgroupoid.
* (
12/
01/
11) Checked the order
for maps: [ src, rng, hom, imobs ].
Implemented m1*m2 when m1,m2 have several pieces.
Renamed ObjectPermOfGroupoidHomomorphism
as ObjectTransformation OfGroupoidHomomorphism
and added MappingTransObjectsImages.
Added TestAllProductsUnderGroupoidHomomorphism.
Rename the following:
MagmaHomomorphism..Piece.. -> Homomorphism..Piece..,
IsHomomorphismWithObjectsRep -> IsMappingWithObjectsRep,
IsHomomorphismToSinglePieceRep -> IsMappingToSinglePieceRep
* (
02/
01/
11) Added checks in GroupoidHomomorphismFromSinglePiece.
* (
21/
09/
10) Added operation RootObject.
Added LargerDirectProductGroupoid
for IsSinglePieceRaysRep,
so a RaysRep groupoid is a subgroupoid of a direct product
groupoid, which may in turn have a larger parent.
Added operation ReplaceOnePieceInUnion.
* (
20/
09/
10) Implemented ConjugateGroupoid
and removed ConjugateSubgroupoid.
MultiplicativeElementWithObjectsNC how has first parameter
'isgpdelt', which is true
for groupoid elements
and,
when true, elements have GroupoidElementsFamily.
This allows special methods
for elements of groupoids.
* (
08/
09/
10) Deleted chunks of
code into file `oldgpd.g{d,i}` :-
IsGroupoid, IsGroupoidElementRep, GroupoidElementNC.
Added ViewObj method
for homs with more than one piece.
Added IsInjectiveWithObjects, IsSurjectiveWithObjects
methods
for homs with more than one piece.
* (
07/
05/
10) Added example of homomorphism S123 -> T123
* (
06/
05/
10) Reversed the pair in PieceImages: now [ hom, imobs ]
* (
05/
05/
10) Added \^(e,p)
for element in MonoidWithObjects
and an
Int
* (
05/
05/
10) Changed GeneratorsOfMagmaWithObjects from Attribute to Operation
returning Attribute GeneratorsOfMagma(WithOne/Inverses).
* (
05/
05/
10) Added sections on SemigroupsWithObjects
and MonoidsWithObjects
to the manual.
* (
30/
04/
10) Introduced MultiplicativeElementWithObjectsFamily
so now
'FamilyObj(e)!.mwo' fails to work.
Decided to try to do without saving the mwo with the element.
(
For now avoid separate family
for each groupoid.)
Also renamed IsMultiplicativeElementWithObjectsAndInverses
as IsGroupoidElement,
and added the family of these.
Also added GroupoidFamily, GroupoidElementFamily.
* (
30/
04/
10) IsGroupoidHomomorphism renamed IsGroupWithObjectsHomomorphism
and introduced new category IsGroupoidHomomorphism with
corresponding collection
and family constructions.
* (
26/
04/
10) Testing a trivial
version of AutomorphismGroup( gpd )
;
* (
23/
04/
10) In mwo.gd added MagmaWithObjectsFamily,
and used
this family
in SinglePieceMagmaWithObjects when applying Objectify,
so that now IsMagmaWithObjectsCollection( [M78] )
; is true!
Ditto GeneralMappingWithObjectsFamily in `mwohom.g{d,i}`.
IsGeneratorsOfMagmaWithInverses in `gpdaut.gi` now works.
?? Can now get rid of all the .eltsfam
's ?? probably not!
* (
20/
04/
10) Copied method
for IsGeneratorsOfMagmaWithInverses
from grpmat.gi, but does not work at present.
* (
16/
04/
10) Started files gpdaut.gd
and gpdaut.gi
and introduced
IsAutomorphismGroupOfGroupoid, GroupoidActedUpon (??)
* (
15/
04/
10) Renamed SinglePieceGroupoidWithRays as SubgroupoidWithRays
* (
26/
03/
10) Moved Gpd development to IMac at home,
and started v.
1.
07
##
1.
04 ->
1.
05 (
21/
11/
2008)
* (
21/
11/
08) Introduced TypeOfDomainWithObjects.
Completed the change of parameter order to
"<mag>,<obs>",
* (
19/
11/
08) GapDoc relegated to
"suggested other packages".
* (
18/
11/
08) another massive change of function names (
and filenames)
with Mapping -> Homomorphism (
and ***map.* -> ***hom.*),
* (
17/
11/
08) IsMappingSinglePieceSinglePiece -> IsMappingFromSinglePiece,
MagmaMappingWithCommonRange -> MappingToSinglePiece,
MappingOfSinglePieces -> MappingFromSinglePiece,
MappingFromSinglePiece -> MagmaMappingFromSinglePiece,
MagmaMappingByPieces -> MappingByUnion,
IsSinglePiece now (IsMagmaWithObjects
and IsSinglePieceDomain),
and similarly
for IsDiscrete
and IsDirectProductWithCompleteGraph,
added global function GroupoidMapping,
* (
14/
11/
08) added InverseGeneralMapping method
for
IsGroupoidMapping
and IsMappingSinglePieceSinglrPiece,
omitted `morgraph.g{d,i}`
and reinstated grpgraph, gpdgraph :
needed to replace \in by IsElementInGroupoid many times
;
still a problem with \*
for GraphOfGroupoidsWords
##
1.
03 ->
1.
04 (
13/
11/
2008)
problem: need to redefine PieceImages in light of DefaultGroupoidMappingRep ?
need elements
for this new submagma representation
* (
13/
11/
08) deleted lots of examples which do not work at present
added GNU General
Public License declaration,
moved some XMod utilities to `gpd/gap/util.g{d,i},
* (
07/
11/
08) started chapters in the manual
for magmas with objects
;
got rid of the PosRep representation (not being used)
;
redefined IsSemigroupMappingWithObjects,
IsMonoidMappingWithObjects
and IsGroupoidMapping
;
added property IsConstantOnObjects
for mappings
(
this just returns true at the moment!)
* (
14/
10/
08) added new methods
for MultiplicativeElementWithObjects
;
added property IsMappingSinglePieceSinglePiece
;
* (
13/
10/
08) started to construct submagmas with objects using
a generating array of lists of elements:-
added representation IsSubmagmaWithObjectsTableRep,
and operations IsSubmagmaWithObjectsGeneratingTable,
SubmagmaWithObjectsElementsTable,
and SubmagmaWithObjectsByElementsTable
;
* (
10/
10/
08) Functions coming from preprint
08.
05 :-
: IsDefaultGroupoidMappingRep,
: GroupoidMappingOfSinglePieces,
: MappingPermObjectsImages,
: GroupoidMappingByObjectImages,
: GroupoidMappingByGroupHom,
: GroupoidMappingByRayProds,
* (
10/
10/
08) should IeEndomorphismWithObjects be IsEndoGeneralMapping ??
introduced IsDefaultGroupoidMappingRep
;
added attribute ImagesOfRays
;
added operation MappingPermObjectsImages
;
renamed MappingOfSinglePiecesNew
as MappingOfSinglePiecesGeneratorsImages - is it needed?
* (
09/
10/
08) found there is a problem in LeftCosetsNC !!
converted
"Morphism" to
"Mapping" throughout:
this includes replacing
"mor" by
"map" in filenames
;
replaced
"IsMagmaMappingWithObjects"
with
"IsSemigroupMappingWithObjects";
found lots of
"Constituents" in the library,
so changed
"Constituents" to
"Pieces";
* (
06/
10/
08) added Display
for MagmaWithObjects
;
converted Iterator from Groupoid to MagmaWithObjects
;
problems with Group(mor1a,mor1b) in mwomor.g
* (
03/
10/
08) added SubgroupoidBySubgroup
;
rewrote attribute GeneratorsOfMagmaWithObjects
called by operation GeneratorsOfGroupoid
;
removed test
for U to be wide in G
for (Right/Left)Coset,
and at the same
time introduced attribute SuperDomain
;
wondered whether to introduce category IsPermWithObjects?
* (
25/
09/
08) new method
for FullSubgroupoid
;
changed IsSubgroupoid to an Operation from GlobalFunction
and split into a collection of methods
;
fixed bug in \=
for groupoids
;
* (
24/
09/
08) new category IsDomainWithObjects >= IsMagmaWithObjects
and global function DomainWithObjects
ApplyToSingleObject -> DomainWithSingleObject
ObjectMagma(s) -> ObjectDomain(s) . . . needs to be checked?
SubmagmaWithObjects -> SubdomainWithObjects, etc.
* (
18/
09/
08) New function HomsetCosetsGroupoidCoset
used
for RightCoset( sgpd, e )
and LeftCoset( sgpd, e )
but more work needed when there are several constituents.
* (
12/
09/
08) SingleConstituentGroupoidWithRays now a subgroupoid of an
IsDirectProductWithCompleteGraph
and with the same objects.
RootGroup is now stored as .magma
HomsetCosetsRep now has a sixth parameter - the rays.
ObjectStar, ObjectCostar, Homset all edited ,
UnionHomsets removed as not needed.
* (
03/
09/
08) SetParent
for Submagma : Magma now AttributeStoring
* (
01/
09/
08) Converted old IsSubgroupoid to IsSubmagmaWithObjects etc.
* (
04/
04/
08) Replaced GpdBuildManual() by file makedocrel.g
* (
20/
03/
08) Functions renamed as follows:
: ObjectsOfGroupoid -> ObjectList
: ConstituentsOfGroupoid -> Constituents
: GroupoidByUnion(NC) -> UnionOfConstituents(NC)
: GroupAsGroupoid -> ApplyToSingleObject
: IsGroupoidRep -> IsConstituentsRep
: IsStandardConnectedGroupoid -> IsDirectProductWithCompleteGraph
: IsConnectedGroupoidRep -> IsGroupoidWithObjectsCompRep
: IsConnectedGroupoidWithRaysRep -> IsSingleConstituentRaysRep
: ConnectedGroupoid(NC) -> SingleConstituentGroupoid
: ConnectedGroupoidWithRays(NC) -> SingleConstituentGroupoidWithRays(NC)
: ConnectedGroupoidByGenerators -> SingleConstituentGroupoidByGenerators
: GroupElement -> Arrow
: Tail -> Arrowtail
: Head -> Arrowhead
* (
14/
03/
08) Started new files: `mathcat.gd`
and `mathcat.gi`
initially with small bits taken from: `gpd.gd`
and `gpd.gi`.
Tried to
add some digraph functions there . . .
but these should be in files: `digraph.gd`
and `digraph.gi`.
* (
13/
03/
08) Since
'component' is used in ComponentObjectRep, etc.,
changed ComponentsOf... to ConstituentsOf...
* (
11/
03/
08) MathCat now a Category,
and not a Property
* (
11/
03/
08) Revised: IsPermGroupoid, IsFpGroupoid, IsPcGroupoid
* (
11/
03/
08) Revised: PrintObj
and ViewObj
* (
11/
03/
08) Replaced test
for IsPcGroupoid with IsPolycyclicGroup(g)
* (
06/
03/
08) Need: ConnectedGroupoidByGenerators( gens ) etc.
* (
06/
03/
08) Method
for GeneratorsOfGroupoid in the non-connected case.
* (
05/
03/
08) Expanded conjugation operator, e1^e2, following preprint
07.
10
##
1.
01 ->
1.
03 (
08/
10/
2007)
* Started
this `CHANGES` file.
* Now using GAPDoc-
1.
0.
* Fixed some bugs in the example files.
* New versions of MorphismToConnectedGroupoid, MorphismOfConnectedGroupoids
have been started, but are not called
and require further revision.
* Created a test file: `gpd_manual.tst` called by `testall.g`
* Started to reintroduce connected groupoids with variable object groups:
added: IsGroupoidWithConstantGroup, ConnectedGroupoidWithRays(NC).
Note: many of the other functions do not yet work with these groupoids.
# HISTORY up to
version 1.
01
*
07/
05/
97 package `GraphGpd` started: tree
and connected groupoids
*
12/
12/
00 version 1.
001 published in Emma Moore
's thesis
*
30/
01/
04 version 1.
002 prepared
for GAP
4.
4
*
05/
04/
06 version 1.
003 now has documentation in GAPDoc format,
some names changed to avoid conflict with other packages.
*
05/
04/
06 package extensively rewritten
and renamed
'Gpd':
version 1.
01 submited as a deposited package