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تسجيل مستخدم جديدBraided equivariant crossed modules and cohomology of $Gamma $-modules
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If $Gamma $ is a group, then braided $Gamma $-crossed modules are classified by braided strict $Gamma $-graded categorial groups. The Schreier theory obtained for $Gamma $-module extensions of the type of an abelian $Gamma $-crossed module is a generalization of the theory of $Gamma $-module extensions.
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