You are wright in fact Fred Diamond computed its semisimplification via Brauer characters but I need to see for two special cases if I don't have a direct sums already . Anyway, many thanks for the documentations
On Tue, Oct 20, 2009 at 4:49 PM, David Joyner <wdjoy...@gmail.com> wrote: > > I think > (a) that particular module is described in lots of books > (b) the way you do decompositions of modular representations > in general is to use meataxe or Brauer characters. Sage has > them since GAP does and Sage contains GAP. > > If you have a technical question about GAP syntax, you might also > look at the GAP reference manual or email the gap support list. > > > On Tue, Oct 20, 2009 at 10:08 AM, adam mohamed > <adam.hariv...@googlemail.com> wrote: > > For an integer n, it is the sub-module homogeneous polynomials in two > > variables of degree over a finite field k with the action of GL_2( k ). > So > > I know the generators of the modules but I am not sure how to describe it > as > > a Meataxe module. > > > > On Tue, Oct 20, 2009 at 3:52 PM, David Joyner <wdjoy...@gmail.com> > wrote: > >> > >> Can you describe it as a Meataxe module? > >> http://www.gap-system.org/Manuals/doc/htm/ref/CHAP067.htm > >> > >> On Tue, Oct 20, 2009 at 8:04 AM, adam mohamed > >> <adam.hariv...@googlemail.com> wrote: > >> > It is some polynomial module over a finite field. Thanks for the > quick > >> > reply. > >> > > >> > On Tue, Oct 20, 2009 at 1:57 PM, David Joyner <wdjoy...@gmail.com> > >> > wrote: > >> >> > >> >> What type of module? Sage contains GAP, which might do what you want > >> >> http://www.gap-system.org/Manuals/doc/htm/ref/chapters.htm > >> >> > >> >> > >> >> On Tue, Oct 20, 2009 at 7:32 AM, adam mohamed > >> >> <adam.hariv...@googlemail.com> wrote: > >> >> > > >> >> > Hi All, > >> >> > > >> >> > Is it possible to compute the semi-simplification of a module in > >> >> > sage > >> >> > or I > >> >> > have to use magma for that? Thanks. > >> >> > > >> >> > > >> >> > -- > >> >> > adam > >> >> > > >> >> > > > >> >> > > >> >> > >> >> > >> > > >> > > >> > > >> > -- > >> > adam > >> > > >> > > > >> > > >> > >> > > > > > > > > -- > > adam > > > > > > > > > > > -- adam --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
