######################################################################### ## #W README The Sophus package Csaba Schneider ## ## #W Readme file for the Sophus package. ## #H $Id: README,v 1.4 2004/10/18 13:17:38 gap Exp $ The Sophus Package ------------------ The Sophus package is written to compute with nilpotent Lie algebras over finite prime fields. Using this package, you can compute the cover, the list of immediate descendants, and the automorphism group of such Lie algebras. You can also test if two such Lie algebras are isomorphic. The immediate descendant function of the package can be used to classify small-dimensional nilpotent Lie algebras over a given field. For instance, the package author obtained a classification of nilpotent Lie algebras with dimension at most 9 over F_2; see www.sztaki.hu/~schneider/Research/SmallLie. Authors ------- The Sophus package was written by: Csaba Schneider Informatics Laboratory Computer and Automation Research Institute The Hungarian Academy of Sciences 1518 Budapest Pf. 63 Hungary Email: csaba.schneider@sztaki.hu WWW: www.sztaki.hu/~schneider Installing the Sophus package ------------------------------ To install the Sophus package, move the archive file 'sophus.zoo' or 'sophus.tar.gz' into the `pkg' directory in which you plan to install Sophus. Usually, this will be the directory `pkg' in the hierarchy of your version of GAP 4. (However, it is also possible to keep an additional `pkg' directory in your private directories, see section "ref:Installing GAP Packages" of the GAP 4 reference manual for details on how to do this.) Then unpack the archive file and that's it! Please remember that if you want to use Sophus then you'll also need to install Version >= 1.2 of the AutPGrp package. To use Sophus online help, it is necessary to install the GAP4 package GAPDoc by Frank Luebeck and Max Neunhoeffer, which is available from the GAP site or http://www.math.rwth-aachen.de/~Frank.Luebeck/GAPDoc/. Bug reports ----------- If you encounter problems, please contact Csaba Schneider (csaba.schneider@sztaki.hu). When sending a bug report, remember we will need to be able to reproduce the problem. Csaba Schneider