diff --git a/lib/grp.gd b/lib/grp.gd index 65a6779792..33f0884a32 100644 --- a/lib/grp.gd +++ b/lib/grp.gd @@ -4362,10 +4362,6 @@ DeclareAttribute( "IsomorphismFpGroup", IsGroup ); ## [ (1,2), (1,2,3,4,5) ] -> [ F1, F2 ] ## gap> fp := Image( iso ); ## -## gap> RelatorsOfFpGroup( fp ); -## [ F1^2, F2^5, (F2^-1*F1)^4, (F1*F2^-1*F1*F2)^3, (F1*F2^-2*F1*F2^2)^2\ -## F2^-1*(F2^-1*F1)^2*F2^2*(F1*F2^-1)^2*F2^-1*F1*F2*F1, -## (F1*F2^-2)^2*F2^-1*F1*F2^3*F1*F2^-3 ] ## ]]> ##

## The main task of the function @@ -4392,9 +4388,9 @@ DeclareAttribute( "IsomorphismFpGroup", IsGroup ); ## (1,12)(2,11)(3,6)(4,8)(5,9)(7,10) ]) ## gap> gens := GeneratorsOfGroup( M12 );; ## gap> iso := IsomorphismFpGroupByGenerators( M12, gens );; -## #I the image group has 3 gens and 21 rels of total length 669 +## #I the image group has 3 gens and 24 rels of total length 669 ## gap> iso := IsomorphismFpGroupByGenerators( M12, gens );; -## #I the image group has 3 gens and 21 rels of total length 414 +## #I the image group has 3 gens and 20 rels of total length 414 ## ]]> ##

## Also in the case of a permutation group G, the function @@ -4443,7 +4439,7 @@ DeclareAttribute( "IsomorphismFpGroup", IsGroup ); ## #I the image group has 3 gens and 11 rels of total length 92 ## gap> iso := IsomorphismFpGroupByGenerators( M12, gens : ## > method := "fast" );; -## #I the image group has 3 gens and 176 rels of total length 3170 +## #I the image group has 3 gens and 136 rels of total length 3170 ## ]]> ##

## Though the option method := "regular" is only checked in the case @@ -4465,7 +4461,7 @@ DeclareAttribute( "IsomorphismFpGroup", IsGroup ); ## [ [ 0, 1, 0, 0, 0 ], [ 0, 0, 1, 0, 0 ], [ 0, 0, 0, 1, 0 ], ## [ 1, 0, 0, 0, 0 ], [ 0, 0, 0, 0, 1 ] ] ] ## gap> iso := IsomorphismFpGroupByGenerators( G, gens );; -## #I the image group has 2 gens and 8 rels of total length 128 +## #I the image group has 2 gens and 11 rels of total length 128 ## gap> iso := IsomorphismFpGroupByGenerators( G, gens : ## > method := "regular");; ## #I the image group has 2 gens and 6 rels of total length 56