activity
20092025
most citedTwo special subgroups of the universal sofic group

1 citations · 1 across the 10 of their papers we have counts for

collaborators

10 papers

math.DS2025

Local inverse measure-theoretic entropy for endomorphisms

Eugen Mihailescu, Radu B. Munteanu

We introduce a new notion of local inverse metric entropy along backward trajectories for ergodic measures preserved by endomorphisms (non-invertible maps) on a compact metric spac…

math.FA2021

On Krein-Milman theorem for the space of sofic representations

Radu B. Munteanu, Liviu Paunescu

Denote by the space of sofic representations of a countable group . This space is known by a result of the second author, to have a convex-like structure. We show that,…

math.DS2018

The flow of weights of some factors arising as fixed point algebras

Radu B. Munteanu

In this paper we study the associated flow of some factors arising as fixed point algebras under product type actions on ITPFI factors. We compute their associated flow and show th…

math.DS2017

Approximate transitivity of the ergodic action of the group of finite permutations of on

B. Mitchell Baker, Thierry Giordano, Radu B. Munteanu

In this paper we show that the natural action of the symmetric group acting on the product space endowed with a symmetric measure is approximately transit…

math.FA2017★ 1 cited

Two special subgroups of the universal sofic group

Matteo Cavaleri, Radu B. Munteanu, Liviu Paunescu

We define a subgroup of the universal sofic group, obtained as the normaliser of a separable abelian subalgebra. This subgroup can be obtained as an extension by the group of autom…

math.DS2015

Nonsingular transformations and dimension spaces

Thierry Giordano, David Handelman, Radu B. Munteanu

For any adic transformation defined on the path space of an ordered Bratteli diagram, endowed with a Markov measure , we construct an explicit dimension space (which cor…

math.OA2014

Multipliers of Hilbert pro-C*-bimodules and crossed products by Hilbert pro-C*-bimodules

Maria Joiţa, Radu-B. Munteanu, Ioannis Zarakas

In this paper we introduce the notion of multiplier of a Hilbert pro--bimodule and we investigate the structure of the multiplier bimodule of a Hilbert pro--bi…

math.DS2014

A property of ergodic flows

Maria Joita, Radu-B. Munteanu

In this paper we introduce a property of ergodic flows, called Property B. We prove that any ergodic hyperfinite equiva- lence relation of type III_o whose associated flow satisfie…

math.DS2014

Entropy of AT(n) systems

Radu-B. Munteanu

In this paper we show that any ergodic measure preserving transformation of a standard probability space which is AT for some positive integer has zero entropy. We show th…

math.DS2009

A non-product type non-singular transformation which satisfies Krieger's property A

Radu-B. Munteanu

We show that there exists an ergodic non-singular transformation which satisfies Krieger's property A, but which is not of product type.