Ángel del Río Mateos
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GAP package WeddergaCentral Idempotents and Simple Components of Group AlgebrasAuthors and maintainers: Ángel del Río, Osnel Broche Cristo, Alexander Konovalov, Aurora Olivieri, Gabriela Olteanu, Inneke Van GelderNeeds: GAP, version at least 4.5, GAP package GAPDoc. Operating systems: UNIX, Windows Current version: 4.5.1 Contact: alexk at mcs.st-andrews.ac.uk Download: see below DescriptionThe title Wedderga stands for "Wedderburn decomposition of group Algebras. This is a GAP package to compute the simple components of the Wedderburn decomposition of semisimple group algebras of finite groups over abelian number fields and over finite fields. It also contains functions that compute the primitive central idempotents of the same kind of group algebras, and 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. The Wedderga package was submitted for consideration to the GAP Council on September 25, 2006. The package became accepted since the version 4.3.3 released on May 29, 2008. Installation
Download and unpack the archive given below
in the
Follow the instructions in the chapter `Installation' of
the manual. The manual is available below or in the
subdirectory Online DocumentationThe manual of the package is available in several formats. If the package has been installed properly, all of these documents are also accessible through the GAP online help. Wedderga manualsPackage Archive for DownloadThe Wedderga package is available in the following format: The PackageInfo.g file is available as plain text file.BibliographyWe maintain a list of references to the Wedderga package. It contains works where the Wedderga package was cited. We will appreciate your additions or corrections to this list sent to one of the package maintainers. If you publish a result that was partially obtained with the help of Wedderga, please cite it in the following form: [Wedderga] AcknowledgmentsWedderga development at various stages was supported by:
Alexander Konovalov (alexk at mcs.st-andrews.ac.uk), 27 January 2013 |