B. Battseren

activity

20202025

collaborators

Showing 2022Show all

3 papers · 1 filter

math.GR2022

Quasi-Hermitian pair and co-amenability

Bat-Od Battseren

We adapt the notion of quasi-Hermition group to the pairs $(G, H)$ of discrete group $G$ and its subgroup $H$ . We show that a quasi-Hermitian pair is amenable in the sense of Eymard…

math.OA2022

Von Neumann equivalence and $M_{d}$ type approximation properties

Bat-Od Battseren

We show that $M_{d}$ -approximation-property, $M_{d}$ -weak-amenability, and $M_{d}$ -weak-Haagerup-property are stable under von Neumann equivalence (hence also Measure equivalence and W*-…

math.OA2022

Von Neumann equivalence and group exactness

Bat-Od Battseren

We will show that group exactness is a von Neumann equivalence invariant. This result generalizes the previously known fact stating that group exactness is invariant under measure…

Quasi-Hermitian pair and co-amenability

Von Neumann equivalence and Md​ type approximation properties

Von Neumann equivalence and group exactness

Von Neumann equivalence and $M_{d}$ type approximation properties