On Tue, Dec 23, 2008 at 11:00:53AM -0800, hossein akhlaghi wrote:
> I want to know how i can get the Brauer Table of PSL(4,4) modulo 7.
> I try to obtain it by GAP, but it return this message " #I computing class
> matrix for class of size >10^-6".
This message just indicates that the computation of the (complex) character
table of PSL(4,4) is quite hard: It takes 6 or more hours, depending on your
computer.
I think you cannot compute the 7-modular table with a simple GAP command.
Nevertheless, the complex character table and the 7-modular table are
available in GAP's character table library, e.g., try the following
commands:
LoadPackage("ctbllib");
tab := CharacterTable("L4(4)");
tabmod7 := tab mod 7;
Display(tab);
Display(tabmod7);
LoadPackage("Browse");
Browse(tab);
Browse(tabmod7);
Hope this helps,
Frank Luebeck
--
/// Dr. Frank Lübeck, Lehrstuhl D für Mathematik, Templergraben 64, ///
\\\ 52062 Aachen, Germany \\\
/// E-mail: frank.lueb...@math.rwth-aachen.de ///
\\\ WWW: http://www.math.rwth-aachen.de/~Frank.Luebeck/ \\\
_______________________________________________
Forum mailing list
Forum@mail.gap-system.org
http://mail.gap-system.org/mailman/listinfo/forum
