On extensions of semigroups and their applications to Toeplitz algebras
SA Grigoryan, RN Gumerov, EV Lipacheva - Lobachevskii Journal of …, 2019 - Springer
The paper deals with the normal extensions of cancellative commutative semigroups and
the Toeplitz algebras for those semigroups. By the Toeplitz algebra for a semigroup S one …
the Toeplitz algebras for those semigroups. By the Toeplitz algebra for a semigroup S one …
Extensions of Semigroups and Morphisms of Semigroup-Algebras
EV Lipacheva - Siberian Mathematical Journal, 2021 - Springer
The paper is devoted to the normal extensions of discrete semigroups and *-
homomorphisms of semigroup C^*-algebras. We study the normal extensions of abelian …
homomorphisms of semigroup C^*-algebras. We study the normal extensions of abelian …
On the Stone–Čech Compactification Functor and the Normal Extensions of Monoids
IS Berdnikov, RN Gumerov, EV Lipacheva - Lobachevskii Journal of …, 2021 - Springer
The paper deals with extensions of algebraic and topological monoids. The extensions are
defined by short exact sequences of objects and morphisms in the corresponding categories …
defined by short exact sequences of objects and morphisms in the corresponding categories …
[PDF][PDF] Trivial extensions of semigroups and semigroup C*-algebras
EV Lipacheva - Ufa Math. J., 2022 - matem.anrb.ru
The object of the study in the paper is reduced semigroup C*-algebras for left cancellative
semigroups. Such algebras are a very natural object because it is generated by isometric …
semigroups. Such algebras are a very natural object because it is generated by isometric …
Homological dimension theory of small categories
AA Husainov - Journal of Mathematical Sciences, 2002 - Springer
The homological dimension theory of small categories was founded by Mitchell in 1968–
1982. It is concerned with the vanishing conditions for the derived functors of the limit. It …
1982. It is concerned with the vanishing conditions for the derived functors of the limit. It …
[HTML][HTML] Тривиальные расширения полугрупп и полугрупповые C*-алгебры
ЕВ Липачева - Уфимский математический журнал, 2022 - cyberleninka.ru
Предметом исследования в статье являются приведенные полугрупповые C*-алгебры
для полугрупп, обладающих свойством левого сокращения. Такая алгебра …
для полугрупп, обладающих свойством левого сокращения. Такая алгебра …
[CITAZIONE][C] On Extensions of Semigroups and Their Applications to Toeplitz Algebras
СА Григорян, РН Гумеров, ЕВ Липачева - Lobachevskii Journal of Mathematics, 2019