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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>

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