Dear Members of the GAP Forum,

It is a pleasure to announce the new GAP3 share package

`MOP'

by Ulf Juergens and Gerhard Roehrle.

MOP is designed to compute upper bounds for the modality of the
action of a parabolic subgroup P (of an algebraic group G) on the
Lie algebra of its unipotent radical.

MOP can be applied if G has a simply laced Dynkin diagram.

Since MOP uses the CHEVIE share package of GAP3, it is not
available as a GAP4 package.

MOP can be obtained from the web page

http://www.mat.bham.ac.uk/G.E.Roehrle/MOP.html

Questions concerning the package or its installation should be
addressed to

ger@for.mat.bham.ac.uk

or to

ulf@Mathematik.Uni-Bielefeld.DE

Gerhard Hiss,
December 12, 2001

--
Gerhard Hiss
Lehrstuhl D fuer Mathematik, RWTH Aachen 
Templergraben 64, 52062 Aachen
Tel.: (+49) (0) 241 / 80-94543