When you know that SU(n,q) is isomorphic to PSU(n,q) (such as in your example SU(4,2)) then you can use PSU instead, which always arrives as a perm group.
On Thu, 12 Jan 2006, Tom Hoffman wrote: > > Does anyone know how to get a permutation representation of a special unitary > group in GAP? The manual says that the command SpecialUnitaryGroup will take a > filter as its first argument but when I tried this I got the following > > GAP4, Version: 4.4.6 of 02-Sep-2005, i686-pc-linux-gnu-gcc > gap> SpecialUnitaryGroup(IsPermGroup, 4,2); > Error, no method found! For debugging hints type ?Recovery from NoMethodFound > Error, no 1st choice method found for `SpecialUnitaryGroupCons' on 3 > arguments\ > called from > SpecialUnitaryGroupCons( arg[1], arg[2], arg[3] ) called from > <function>( <arguments> ) called from read-eval-loop > Entering break read-eval-print loop ... > you can 'quit;' to quit to outer loop, or > you can 'return;' to continue > brk> > > Any help would be appreciated. > Tom > > > Dr. Thomas R. Hoffman > Department of Mathematics and Statistics > Coastal Carolina University > > ----------------------------------------------------------------------- > This message was sent from the Coastal Carolina University Mail System. > > _______________________________________________ > Forum mailing list > [email protected] > http://mail.gap-system.org/mailman/listinfo/forum > _______________________________________________ Forum mailing list [email protected] http://mail.gap-system.org/mailman/listinfo/forum
