Dear all, I am trying to find the character tables of some finitely presented semigroups, say for example: <a,b| a^5=a, b^3=b, a^3b = ba>. It is an inverse semigroup of order 14. I can Define this semigroup in GAP 4.8.3 but I fail to find the character table:
*gap> IsInverseSemigroup(S);* *true* *gap> CharacterTableOfInverseSemigroup(S);* *Error, no method found! For debugging hints type ?Recovery from NoMethodFound* *Error, no 1st choice method found for `CharacterTableOfInverseSemigroup' on 1 arguments called from* *<function "HANDLE_METHOD_NOT_FOUND">( <arguments> )* * called from read-eval loop at line 87 of *stdin** *you can 'quit;' to quit to outer loop, or* *you can 'return;' to continue* I thought this command may only work for monoids, so I considered a monoid of order 15 but it didn't work either. However it works for some other monoids. For instance the command gives the character table of S if I write *S:=SymmetricInverseMonoid(3); * I will be grateful to let me know if it is a bug or I am doing something wrong. Best regards, Amin _______________________________________________ Forum mailing list Forum@mail.gap-system.org http://mail.gap-system.org/mailman/listinfo/forum