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math.AT2018
Cohomology of n-categories and derivations in group algebras
Andronick Arutyunov, Alekseev Aleksandr
This work represents the concept of an n-groupoid and n-characters on n-groupoids as complex-valued maps from spaces of different classes of morphisms satisfying th…
math.AT2018
Smooth Version of Johnson's Problem Concerning Derivations of Group Algebras
A. A. Arutyunov, A. S. Mishchenko
A description of the algebra of outer derivations of a group algebra of a finitely presented discrete group is given in terms of the Cayley complex of the groupoid of the adjoint a…