gap-crisp

GAP: Computing with Radicals, Injectors, Schunck classes and Projectors

The GAP package "CRISP" provides algorithsmf roc omputing subgroups of finite solvable groups related to a group class 'C'. In particular, it allows to compute 'C' radicals and 'C'-injectors for Fitting (and Fitting sets) 'C', 'C'-residuals for formations 'C', and 'C'-projectors for Schunck classes 'C'. Moreover, CRISP contains algorithms for the computation of normal subgroups invariant under a prescribed set of automorphisms and belonging to a given group class.

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