Dear Forum, Fatemeh Moftakhar asked:
> I have a question. > G is a graph and x is an involution in G. Is there any algorithm in GAP for > computing the number of involutions in x^G such that O(xy) is odd? > > Any comments or suggestions will be highly appreciated. There is no direct function for this. Assuming you mean G is a group, and it is small enough that you can calculate the character table, the class structure constants (see manual: ClassStructureCharTable, http://www.gap-system.org/Manuals/doc/ref/chap71.html#X7F9D58208241D35E ) allow to determine such a count. Regards, Alexander Hulpke -- Colorado State University, Department of Mathematics, Weber Building, 1874 Campus Delivery, Fort Collins, CO 80523-1874, USA email: hul...@math.colostate.edu, Phone: ++1-970-4914288 http://www.math.colostate.edu/~hulpke _______________________________________________ Forum mailing list Forum@mail.gap-system.org http://mail.gap-system.org/mailman/listinfo/forum
