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I am a student of mathematics who has difficulties with GAP 4. I unfortunately don't know how to do the following things:

1) I wish to compute the Heller module of the trivial module in the Kleinian Four Group

2) I'd like to enter a module in GAP when some matrices which reflect the group elements' actions are given (e.g. like in exercise 13 on page 24 (31 of 109) of Benson's paper http://arxiv.org/PS_cache/arxiv/pdf/1107/1107.4815v1.pdf)

3) I want to calculate with an algebraic closure of F_p in GAP - is there a way to implement this?

I would be very grateful for any help.

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    You may have some luck with answers here; but if you do not, consider the GAP Forum mailing list instead. See [the GAP forum page](http://www.gap-system.org/Contacts/Forum/forum.html).2012-01-03
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    @Arturo: Thank you for your comment. I think, I'll do that if I don't get answers here.2012-01-04

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