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Homologically trivial Frechet algebrasWe survey some results on the structure of biprojective, contractible and superbiprojective Frechet

C*-Algebras Generated by Mappings. Criterion of Irreducibility
© 2018, Allerton Press, Inc. We study the operator algebra associated with a self-mapping ϕ on a

Restrictions on the degree spectra of algebraic structuresWe construct the degree b ≤ 0″ admitting no algebraic structure with degree spectrum {x: x ≰ b

On computably enumerable structures approach that introduces effectiveness into the study of algebraic structures. In this approach the initial

S-ALGEBRAS AND HARISH-CHANDRA MODULES OVER SYMMETRICAL LIE-ALGEBRASStructural relations in Mickelsson S-algebras over symmetric Lie algebras are investigated. A

Lie-Admissible Algebras Associated with Dynamical SystemsWe introduce the general structures of Lie-admissible algebras in the spaces of Gâteaux

Polynomial-time presentations of algebraic number fields
of the notion of polynomial time presentable structure we show that some natural presentations of the ordered

Affiliated subspaces and the structure of von neumann algebras Neumann algebra M and the inner structure of the algebra M is studied. The following characterization

On connection between variational symmetries and algebraic structures of Bu-potentials, variational symmetries, and algebraic structures, Lie-admissible algebras and Lie

The Goldie Theorem for H-semiprime algebrasThe main result states that, under certain assumptions about a Hopf algebra H, every H

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