activity
20192022
collaborators

6 papers

math.RA2022

Locally standard measure algebras

Oksana Bezushchak, Bogdana Oliynyk

We parameterize countable locally standard measure algebras by pairs of a Steinitz number and a real number greater or equal to 1. This is an analog of the theorems of J.Dixmier an…

math.RA2020

Derivations and automorphisms of locally matrix algebras

Oksana Bezushchak

We describe derivations and automorphisms of infinite tensor products of matrix algebras. Using this description we show that for a countable--dimensional locally matrix algebra $A…

math.RA2020

Hamming spaces and locally matrix algebras

Oksana Bezushchak, Bogdana Oliynyk

We introduce an abstract definition of a Hamming space that generalizes standard Hamming spaces . We classify countable locally standard Hamming spa…

math.RA2020

Morita equivalent unital locally matrix algebras

Oksana Bezushchak, Bogdana Oliynyk

We describe Morita equivalence of unital locally matrix algebras in terms of their Steinitz parametrization. Two countable dimensional unital locally matrix algebras are Morita equ…

math.RA2019

On primary decompositions of unital locally matrix algebras

Oksana Bezushchak, Bogdana Oliynyk

We construct a unital locally matrix algebra of uncountable dimension that (1) does not admit a primary decomposition, (2) has an infinite locally finite Steinitz number. It gives…

math.RA2019

Unital locally matrix algebras and Steinitz numbers

Oksana Bezushchak, Bogdana Oliynyk

An -algebra with unit is said to be a locally matrix algebra if an arbitrary finite collection of elements from lies in a subalgebra wit…