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# ModIsom
ModIsom
is a GAP4 package. It contains various methods
for computing
with
nilpotent associative algebras.
In particular, it contains a method
to
determine the automorphism group
and to test isomorphis
of such algebras
over finite fields
and of modular group algebras
of finite p-groups,
and
it contains a nilpotent quotient algorithm
for finitely presented associative
algebras
and a method
to determine Kurosh algebras.
Some
of the functions
to compute
with nilpotent algebras are tailored towards
application
for the Modular Isomorphism Problem.
Moreover, the package allows
to compute various group theoretical properties
of groups
related
to the Modular Isomorphism Problem.
## Installation
To install the package ModIsom move the
file `modisom-X.Y.Z.tar.gz`
(
or any other archive containing it) into the `pkg` directory.
Usually this will be the `pkg` subdirectory
in your GAP4 installation.
However, it
is also possible
to have a `pkg` subdirectory
in a different
place, see the section `Installing GAP Packages`
of the GAP4 reference
manual
for more information.
Then simply unpack `modisom-XX.tar.gz`
and
your installation
is complete.
To load the package, call
gap> LoadPackage(
"modisom" );
## Documentation
The manual
of ModIsom
is contained
in `modisom/doc`
and `modisom/htm`
directories.