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GAP package lpres

Nilpotent Quotients of L-Presented Groups

Author

René Hartung

Maintainer

Laurent Bartholdi

Short Description

The LPRES Package defines new GAP objects to work with L-presented groups, namely groups given by a finite generating set and a possibly-infinite set of relations given as iterates of finitely many seed relations by a finite set of endomorphisms. The package implements nilpotent quotient, Todd-Coxeter and Reidemeister-Schreier algorithms for L-presented groups.

Version

Current version number 0.4.1   (Released 24/02/2017)

Status

deposited    (communicated by Alexander Konovalov (St Andrews), accepted 02/2009)

Dependencies

GAP version: >= 4.4
Needed other packages: polycyclic(>= 2.5), FGA(>= 1.1.0.1),
Suggested other packages: ParGAP(>= 1.1.2), AutPGrp(>= 1.4), ACE(>= 5.0),

Online documentation

lpres: [ HTML] version   [ PDF] version  

Download

[README]    lpres-0.4.1[.tar.gz  (432K)]   [.tar.bz2  (408K)]   [-win.zip  (504K)]   [.zip  (504K)]  

Source code repository

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

Issue tracker

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

Contact

Laurent Bartholdi
Address:
Mathematisches Institut
Bunsenstraße 3-5
D-37073 Göttingen
Germany
WWW: http://www.uni-math.gwdg.de/laurent
E-mail: laurent.bartholdi@gmail.com