Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Munteanu, Radu B."'
Autor:
Munteanu, Radu B., Paunescu, Liviu
Denote by $Sof(G)$ the space of sofic representations of a countable group $G$. This space is known by a result of the second author, to have a convex-like structure. We show that, in this space, minimal faces are extreme points. We then construct un
Externí odkaz:
http://arxiv.org/abs/2107.01236
Autor:
Munteanu, Radu B.
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 that under certain conditions these flows are approximately transitive a
Externí odkaz:
http://arxiv.org/abs/1811.10846
Publikováno v:
Ergodic Theory and Dynamical Systems 39(2019), 2881-2895
In this paper we show that the natural action of the symmetric group acting on the product space $\{0, 1 \}^{\mathbb{N}} $ endowed with a symmetric measure is approximately transitive. We also extend the result to a larger class of probability measur
Externí odkaz:
http://arxiv.org/abs/1707.00927
Publikováno v:
Ergod. Th. Dynam. Sys. 39 (2019) 3250-3261
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 automorphisms on a standard probability space. We show that each sofic repr
Externí odkaz:
http://arxiv.org/abs/1704.00814
For any adic transformation $T$ defined on the path space $X$ of an ordered Bratteli diagram, endowed with a Markov measure $\mu$, we construct an explicit dimension space (which corresponds to a matrix values random walk on $\mathbb{Z}$) whose Poiss
Externí odkaz:
http://arxiv.org/abs/1510.05672
In this paper we introduce the notion of multiplier of a Hilbert pro-$C^{\ast }$-bimodule and we investigate the structure of the multiplier bimodule of a Hilbert pro-$C^{\ast}$-bimodule. We also investigate the relationship between the crossed produ
Externí odkaz:
http://arxiv.org/abs/1412.2270
Autor:
Joita, Maria, Munteanu, Radu-B.
Publikováno v:
Studia Mathematica 255 (2014) 3, 249-258
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 satisfies this property is not of product type. A consequence of this result i
Externí odkaz:
http://arxiv.org/abs/1412.2047
Autor:
Munteanu, Radu-B.
Publikováno v:
Ergodic Theory and Dynamical Systems 38(2018), 1118-1126
In this paper we show that any ergodic measure preserving transformation of a standard probability space which is AT$(n)$ for some positive integer $n$ has zero entropy. We show that for every positive integer $n$ any Bernoulli shift is not AT($n$).
Externí odkaz:
http://arxiv.org/abs/1412.2038
Autor:
Munteanu, Radu-B.
Publikováno v:
Israel Journal of Matematics, 190 (2012), 307-324
We show that there exists an ergodic non-singular transformation which satisfies Krieger's property A, but which is not of product type.
Comment: 12 pages
Comment: 12 pages
Externí odkaz:
http://arxiv.org/abs/0912.2627
Autor:
Munteanu, Radu B.
Publikováno v:
Bulletin mathématique de la Société des Sciences Mathématiques de Roumanie, 2017 Jan 01. 60(1), 79-89.
Externí odkaz:
https://www.jstor.org/stable/26407477
