GAP

Main Branches

Downloads  Installation  Overview  Data Libraries  Packages  Documentation  Contacts  FAQ  GAP 3 

GAP package Wedderga

Wedderburn Decomposition of Group Algebras

Authors

Gurmeet Kaur Bakshi, Osnel Broche Cristo, Allen Herman, Alexander Konovalov, Sugandha Maheshwary, Gabriela Olteanu, Aurora Olivieri, Angel del Rio, Inneke Van Gelder

Maintainers

Gurmeet Kaur Bakshi, Osnel Broche Cristo, Allen Herman, Alexander Konovalov, Sugandha Maheshwary, Gabriela Olteanu, Aurora Olivieri, Angel del Rio, Inneke Van Gelder

Short Description

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 rationals. It also contains functions that produce the primitive central idempotents of semisimple group algebras and functions for computing Schur indices. Other functions of Wedderga allow one 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 shipped with GAP: 4.9.5   (Released 30/11/2018)

Status

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

Dependencies

GAP version: >=4.8
Needed other packages: GAPDoc(>= 1.5.1)
Suggested other packages: laguna(>= 3.4), GUAVA(>= 3.12)

Online documentation

Wedderga: [ HTML] version   [ PDF] version  

Download

[README]    wedderga-4.9.5 [.tar.gz  ]   [.tar.bz2  ]   [-win.zip  ]   [.zip  ]  

Source code repository

git : https://github.com/gap-packages/wedderga

Issue tracker

https://github.com/gap-packages/wedderga/issues