The cohomological reduction method for computing n-dimensional cocyclic matrices

Víctor Álvarez, José-Andrés Armario, María-Dolores Frau +1

Provided that a cohomological model for $G$ is known, we describe a method for constructing a basis for $n$-cocycles over $G$, from which the whole set of $n$-dimensional $n$-cocyc…