OPTIMIZATIONS OF CHOP: AN EXTENDED MEATAXE ALGORITHM IN GAP

The Meataxe algorithm is a popular algorithm to test modules for irreducibility. I review the theory and particular cases of the Meataxe algorithm and the analogies that can be drawn from normal forms of matrices. I describe my implementation of an algorithm already implemented in GAP (Groups, Alg...

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Bibliographic Details
Main Author: HYETT, CRISTON MATTHEW
Other Authors: Lux, Klaus
Language:en_US
Published: The University of Arizona. 2016
Online Access:http://hdl.handle.net/10150/614112
http://arizona.openrepository.com/arizona/handle/10150/614112
Description
Summary:The Meataxe algorithm is a popular algorithm to test modules for irreducibility. I review the theory and particular cases of the Meataxe algorithm and the analogies that can be drawn from normal forms of matrices. I describe my implementation of an algorithm already implemented in GAP (Groups, Algorithms, Programming) to compute the simple composition factors of a module, and implement changes that should in theory speed up computations with large modules. I then test and evaluate predictions.