Dear Thomas Breuer, dear GAP Forum, thank you very much for the very fast reply.
Your workaround works very well (it seems to be a bit more memory consuming when compared to NameOfEquivalentLibraryCharacterTable in the gap 4.9.2 version, but, anyway), thank you very much for the help! :-) Sincerely yours, Bernhard Boehmler On Fri, Mar 1, 2019 at 6:10 PM Thomas Breuer <s...@math.rwth-aachen.de> wrote: > Dear Bernhard, dear Forum, > > this problem is new in GAP 4.10.0, > I hope it will disappear in the next GAP version. > > As a temporary remedy, I propose either not to use GAP 4.10.0 > or to read the following piece of code into the GAP session > after startup. > > InstallMethod( GroupByGenerators, > [ IsGroup, IsMultiplicativeElementWithInverse ], > function( G, id ) > return GroupWithGenerators( GeneratorsOfGroup( G ), id ); > end ); > > I am sorry for the inconveniences. > > All the best, > Thomas > > > On Fri, Mar 01, 2019 at 05:44:20PM +0100, Bernhard Boehmler wrote: > > Dear GAP Forum, > > > > I am running gap 4.10.0 inside sage 8.6 and get an error message after > > > > gap> G:=SymmetricGroup(7); > > Sym( [ 1 .. 7 ] ) > > gap> ct:=CharacterTable(G); > > CharacterTable( Sym( [ 1 .. 7 ] ) ) > > gap> NameOfEquivalentLibraryCharacterTable(ct); > > > > (the error message is printed below). > > > > But, when I use my old stand-alone version of gap (GAP 4.9.2 of > > 04-Jul-2018) it works (and "A7.2" is returned). > > > > I have not installed the Browse package in gap inside sage (I'm not sure, > > if NameOfEquivalentLibraryCharacterTable requires this). > > > > I would be grateful for any help. > > > > Thanks in advance. > > > > Sincerely yours, > > Bernhard Boehmler > > > > > > > > > > > > boehmler@mahlzahn:~$ sage > > ┌────────────────────────────────────────────────────────────────────┐ > > │ SageMath version 8.6, Release Date: 2019-01-15 │ > > │ Using Python 2.7.15. Type "help()" for help. │ > > └────────────────────────────────────────────────────────────────────┘ > > sage: gap.console() > > ┌───────┐ GAP 4.10.0 of 01-Nov-2018 > > │ GAP │ https://www.gap-system.org > > └───────┘ Architecture: x86_64-pc-linux-gnu-default64 > > Configuration: gmp 6.0.0, readline > > Loading the library and packages ... > > Packages: AClib 1.3.1, Alnuth 3.1.0, AtlasRep 1.5.1, AutoDoc > 2018.09.20, > > AutPGrp 1.10, CRISP 1.4.4, Cryst 4.1.18, CrystCat 1.1.8, > > CTblLib 1.2.2, FactInt 1.6.2, FGA 1.4.0, GAPDoc 1.6.2, > > IRREDSOL 1.4, LAGUNA 3.9.0, Polenta 1.3.8, Polycyclic 2.14, > > PrimGrp 3.3.2, RadiRoot 2.8, ResClasses 4.7.1, SmallGrp 1.3, > > Sophus 1.24, TomLib 1.2.7, TransGrp 2.0.4, utils 0.59 > > Try '??help' for help. See also '?copyright', '?cite' and '?authors' > > gap> G:=SymmetricGroup(7); > > Sym( [ 1 .. 7 ] ) > > gap> ct:=CharacterTable(G); > > CharacterTable( Sym( [ 1 .. 7 ] ) ) > > gap> NameOfEquivalentLibraryCharacterTable(ct); > > Error, no method found! For debugging hints type ?Recovery from > > NoMethodFound > > Error, no 1st choice method found for `Length' on 1 arguments at > > /home/boehmler/Schreibtisch/Drarbeit/SAGE/local/share/gap/lib/methsel2.g: > > 250 called from > > Length( gens > > ) at /home/boehmler/Schreibtisch/Drarbeit/SAGE/local/share/gap/lib/ > > grp.gi:437\ > > 2 called from > > MakeGroupyType( FamilyObj( gens ), > > IsGroup and IsAttributeStoringRep and HasIsEmpty > > and HasGeneratorsOfMagmaWithInverses and HasOne, gens, id, true > > ) at /home/boehmler/Schreibtisch/Drarbeit/SAGE/local/share/gap/lib/ > > grp.gi:442\ > > 4 called from > > GroupByGenerators( libtbl.AutomorphismsOfTable, () > > ) at > > /home/boehmler/Schreibtisch/Drarbeit/SAGE/local/share/gap/pkg/ctbllib/ga\ > > p4/ctadmin.tbi:815 called from > > CharacterTableFromLibrary( str > > ) at /home/boehmler/Schreibtisch/Drarbeit/SAGE/local/share/gap/lib/ > > ctbl.gi:40\ > > 99 called from > > CharacterTable( val > > ) at > > /home/boehmler/Schreibtisch/Drarbeit/SAGE/local/share/gap/pkg/ctbllib/ga\ > > p4/ctadmin.tbi:2137 called from > > ... at *stdin*:3 > > type 'quit;' to quit to outer loop > > brk> > > gap> NamesOfEquivalentLibraryCharacterTables(ct); > > Error, no method found! For debugging hints type ?Recovery from > > NoMethodFound > > Error, no 1st choice method found for `Length' on 1 arguments at > > > /home/boehmler/Schreibtisch/Drarbeit/SAGE/local/share/gap/lib/methsel2.g:250 > > called from > > Length( gens ) at > > /home/boehmler/Schreibtisch/Drarbeit/SAGE/local/share/gap/lib/ > grp.gi:4372 > > called from > > MakeGroupyType( FamilyObj( gens ), IsGroup and IsAttributeStoringRep and > > HasIsEmpty and HasGeneratorsOfMagmaWithInverses and HasOne, gens, id, > true > > ) at /home/boehmler/Schreibtisch/Drarbeit/SAGE/local/share/gap/lib/ > > grp.gi:4424 called from > > GroupByGenerators( libtbl.AutomorphismsOfTable, () ) at > > > /home/boehmler/Schreibtisch/Drarbeit/SAGE/local/share/gap/pkg/ctbllib/gap4/ctadmin.tbi:815 > > called from > > CharacterTableFromLibrary( str ) at > > /home/boehmler/Schreibtisch/Drarbeit/SAGE/local/share/gap/lib/ > ctbl.gi:4099 > > called from > > CharacterTable( val ) at > > > /home/boehmler/Schreibtisch/Drarbeit/SAGE/local/share/gap/pkg/ctbllib/gap4/ctadmin.tbi:2137 > > called from > > ... at *stdin*:3 > > type 'quit;' to quit to outer loop > > brk> > > gap> CT:=CharacterTable("S7"); > > CharacterTable( "A7.2" ) > > gap> TransformingPermutationsCharacterTables(CT,ct); > > rec( columns := (2,3,5,10,4,8,15,11,9)(6,12)(13,14), group := Group(()), > > rows := (1,15,6,13,7,3,14,10,12,8,11,5,9,4,2) ) > > gap> > > _______________________________________________ > > Forum mailing list > > Forum@gap-system.org > > https://mail.gap-system.org/mailman/listinfo/forum > _______________________________________________ Forum mailing list Forum@gap-system.org https://mail.gap-system.org/mailman/listinfo/forum
