Hi Taleea,
A very naive implementation of the nilpotent multiplier M^(c)(G) is available
under the name BaerInvariant(G,c).
The following commands calculate the nilpotent multiplier for the dihedral
group G of order 64 and c=3. The multiplier is the finite abelian group
Z_2+Z_2+Z_8 .
gap> LoadPackage("HAP");;
gap> c:=3;;BaerInvariant(DihedralGroup(64),c);
[ 2, 2, 8 ]
See
file:///home/graham/pkg/Hap1.11/www/SideLinks/About/aboutSchurMultiplier.html
for some more details and calculations on infinite groups.
All the best,
Graham
School of Mathematics, Statistics & Applied Mathematics
National University of Ireland, Galway
University Road,
Galway
Ireland
http://hamilton.nuigalway.ie
tel: 091 493011
________________________________________
From: [email protected] [[email protected]] on behalf of
Alexander Konovalov [[email protected]]
Sent: Friday, September 30, 2016 3:23 PM
To: taleea jalaeeyan
Cc: GAP Forum
Subject: Re: [GAP Forum] quastion
Dear Taleea Jalaeeyan,
> On 29 Sep 2016, at 09:04, taleea jalaeeyan <[email protected]> wrote:
>
> Hi there
> Is Gap work on windows or linux?is there diference ?
GAP works on Windows, Linux, and OS X - archives for different operating
systems are at http://www.gap-system.org/Releases/index.html
On Windows, some specialised packages are not available, but that will
be more than sufficient to start to use GAP.
> is c-nilpotent multiplier defined for Gap as default?
Not as far as I am aware of (only some functionality to deal with the
Schur multiplier)
> Can Gap calculate the c-nilpotent multiplier of a group by it's
> presentation?
> Is there any sample program of Gap to calculate c-nilpotent multiplier of
> group?
Again, I don't know. It may be helpful to provide a reference for its
definition in case someone else may be able to give further advice.
Hope this helps
Alexander
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