Dear Gap Forum,
the following exercises, programs, functions and utilities were sent to
us and made available on our ftp server "ftp.math.rwth-aachen.de"
(137.226.152.6). We emphasise once more that they are made available
as sent without *any* warranty from us. Please mail any questions to the
respective originators whose email addresses are given below.
Further such submissions are welcome, best wishes
Frank Celler and Joachim Neubueser
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ /tmp ----
exercises.zoo
- unsorted Galway exercises, email <Gap-Trouble@Math.RWTH-Aachen.DE>
- exercises from Peter Webb <webb@math.umn.edu>
/pub/incoming -------------
AbStab.g,AbStab.doc
- for representing elements of a permutation group in terms of its
generators
- written by Philip Osterlund <osterlu@s6.math.umn.edu>GAP_html.zoo
- GAP manual in HMTL formatWeylMod.g,WeylMod.doc
- WeylMod.g is a small collection of routines that work with
representations of simple complex Lie algebras. It provides the
following:
- (1) definitions of Killing form for all finite simple Lie algebras,
and all affine Lie algebras (Kak-Moody algebras) -- both direct and
twisted.
- (2) Weyl's equation for the dimension of a representation given its
highest weight.
- (3) Freudenthal's recursive algorithm to generate all weights and
multiplicities of a representation given its highest weight.
- written by Jacob Hirbawi <JcbHrb@CERF.net>ctpg.g,ctpgexam.g
- This file contains a couple of GAP (version 3.3) functions that
help in the following situation:
Input: G a finitely presented group, H a homomorphic image of G and U
a subgroup of H.
Output: The abelian invariants of the complete preimage of U in G.
- written by Werner Nickel <Werner.Nickel@math.rwth-aachen.de>fisk.zoo
- GAP manual to EMACS info format translator
- written by Steve Fisk <fisk@bowdoin.edu>gap.m,math.g,gapmath.doc
- GAP to Mathematica, Mathematica to GAP translator
- written by Sebastian Egner <egner@zkm.de>guave.tgz,guave.doc
- Version 0.99 of GUAVA: a coding theory extension for GAP
- written by Erik Roijackers, Jasper Cramwinckel, Reinald Baart
<studgap@twi.tudelft.nl>stamp.g,stamp.doc
- stamp.g -- Routines for computing in very large permutation groups
- written by Steve Linton <sal@cs.st-and.ac.uk>semigroup.g
- functions for semi groups
- semigroup.doc is at present still missing, but promised to be sent
- written by Marcel Widi,
email Tim Boykett <tim@bruckner.stoch.uni-linz.ac.at>