GAP package Wedderga

Wedderga is the package to compute the simple components of the Wedderburn decomposition of semisimple group algebras of finite groups over finite fields and over subfields of finite cyclotomic extensions of the rational. It also contains functions that produce the primitive central idempotents of semisimple group algebras. Other functions of Wedderga allows to construct crossed products over a group with coefficients in an associative ring with identity and the multiplication determined by a given action and twisting.

Version

Current version number 4.3.3 (Released 29/05/2009)

Status

accepted (communicated by Gerhard Hiss (Aachen), accepted 01/2008)

Dependencies

GAP version: >=4.4
Needed other packages: GAPDoc(>= 1.1),
Suggested other packages: laguna(3.4),

Online documentation

Wedderga: [ HTML] version [ PDF] version

Download

[README] wedderga-4.3.3[.zoo (484K)] [.tar.gz (432K)] [-win.zip (472K)] [.tar.bz2 (400K)]

Contact

Osnel Broche Cristo
Address:
Departamento de Ciências Exatas
Universidade Federal de Lavras - UFLA
Campus Universitário - Caixa Postal 3037
37200-000, Lavras - MG, Brazil
E-mail: osnel@ufla.br

Alexander Konovalov
Address:
School of Computer Science
University of St Andrews
Jack Cole Building, North Haugh,
St Andrews, Fife, KY16 9SX, Scotland
WWW: http://www.cs.st-andrews.ac.uk/~alexk/
E-mail: konovalov@member.ams.org

Gabriela Olteanu
Address:
Department of Mathematics and Computer Science
North University of Baia Mare
Victoriei 76, 430122 Baia Mare, Romania
E-mail: golteanu@um.es, olteanu@math.ubbcluj.ro

Aurora Olivieri
Address:
Departamento de Matemáticas
Universidad Simón Bolívar
Apartado Postal 89000
Caracas 1080-A, Venezuela
E-mail: olivieri@usb.ve

Angel del Rio
Address:
Departamento de Matemáticas
Universidad de Murcia
30100 Murcia, Spain
WWW: http://www.um.es/adelrio
E-mail: adelrio@um.es