This is Version 1.1 of the package `AtlasRep' written for GAP 4, whose aim is to provide an interface between GAP and the Atlas of Group Representations, a database that comprises representations of many almost simple groups and information about their maximal subgroups. This database has been available independent of GAP.
The AtlasRep package consists of this database and a GAP interface. The latter allows the user to get an overview of the database, and to access the data in GAP format.
There is a manual (available here in HTML, DVI and PostScript format) that describes the available functions in detail.
Up to now, the package has been developed and tested only on Linux, it may or may not work on other platforms. Two possible problems are the use of a perl script for internet access and the use of filenames that do not obey the ``8+3'' restriction.
The package requires GAP 4.2 (or a newer version of GAP).
The data files of the ATLAS of Group Representations have been prepared by Robert Wilson, Peter Walsh, Jonathan Tripp, Ibrahim Suleiman, Stephen Rogers, Richard Parker, Simon Norton, Steve Linton, and John Bray (in reverse alphabetical order).
The GAP interface was written by Thomas Breuer.
If you have used the AtlasRep package to solve a problem then please send a short email to Robert Wilson or Thomas Breuer about it.
Any comments about the package are very welcome. If you have found important features missing or if there is a bug, let us know and we will try to address it in the next version of the package. Messages concerning the data of the package should be sent to Robert Wilson, messages concerning the GAP interface to Thomas Breuer.
If you want to get Version 1.1 of the AtlasRep package then download the most appropriate of a gzipped tar archive (ca. 210k), zoo archive (ca. 235k). Further information is contained in the README file.
Note that the archives do *NOT* contain the database part of the package; the GAP interface accesses the data on demand via the internet.
(The README file and the zoo archive are available also on the GAP servers.)