This package contains functions for handling commutative matrix algebras over p-adic rings. It essentially computes the decomposition of the algebra as a direct product of its localisations by using the Newton method to lift idempotents from the residue field.
The package is depends on the Magma package ArtinAlgebras.
Here is the complete code, as well as the documentation and an example as a tar.gz-file.
Here is the manual. It contains a description of the algorithm and an example explaining the usage.
Last modification: 24 January 2014.