Askar Tuganbaev

activity

20222026

collaborators

Showing 2024Show all

2 papers · 1 filter

math.RA2024

Multiplicative Automorphisms of Incidence Algebras

Evgenii Kaigorodov, Piotr Krylov, Askar Tuganbaev

Let $I (X, R)$ be the incidence algebra of the preordered set $X$ over the ring $R$ . In the case of a finite connected partially ordered set $X$ , we prove that the subgroup of inner…

math.RA2024

On Centrally Essential Rings

Oleg Lyubimtsev, Askar Tuganbaev

A ring $R$ with center $C$ is said to be centrally essential if the module $R_{C}$ is an essential extension of the module $C_{C}$ . In this paper, we study properties of ideals of cent…