Amenable group

Results: 78



#Item
31Geometric group theory / Deduction / Amenable group / Ergodic theory / Entailment / Orbifold / Gaussian measure / Abstract algebra / Logic / Mathematics

WEAK EQUIVALENCE AND NON-CLASSIFIABILITY OF MEASURE PRESERVING ACTIONS ROBIN D. TUCKER-DROB Abstract. Ab´ert-Weiss have shown that the Bernoulli shift sΓ of a countably infinite group Γ is weakly contained in any free

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Source URL: www.math.rutgers.edu

Language: English - Date: 2012-04-06 14:41:23
32Ergodic theory / Geometry / Amenable group / Ergodicity / Orbifold / Abstract algebra / Geometric group theory / Topology

MIXING ACTIONS OF COUNTABLE GROUPS ARE ALMOST FREE ROBIN D. TUCKER-DROB A measure preserving action of a countably innite group Γ is called totally ergodic if every innite subgroup of Γ acts ergodically. For example,

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Source URL: www.math.rutgers.edu

Language: English - Date: 2014-02-06 10:26:03
33Group theory / Topological groups / Quantum mechanics / Amenable group / Geometric group theory / Group action / Von Neumann algebra / Hilbert space / Ergodic theory / Abstract algebra / Algebra / Operator theory

Abstract This note answers a question of Kechris: if H < G is a normal subgroup of a countable group G, H has property MD and G/H is amenable and residually finite then G also has property MD. Under the same hypothesis w

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Source URL: www.math.rutgers.edu

Language: English - Date: 2011-08-01 20:07:39
34Residually finite group / Virtually / Solvable group / Tits alternative / Index of a subgroup / Central series / Abelian group / Cyclic group / Amenable group / Abstract algebra / Group theory / Algebra

SOME QUESTIONS ON SUBGROUPS OF ´ DUALITY GROUPS 3-DIMENSIONAL POINCARE JONATHAN A. HILLMAN Abstract. We state a number of open questions on 3-dimensional Poincar´e duality groups and their subgroups, motivated by consi

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Source URL: www.maths.usyd.edu.au

Language: English - Date: 2014-02-12 00:12:13
35Geometric group theory / Amenable group / Tits alternative / Bass–Serre theory / Presentation of a group / Solvable group / Abelian group / Cyclic group / Virtually / Abstract algebra / Group theory / Algebra

TITS ALTERNATIVES FOR GRAPH PRODUCTS YAGO ANTOL´IN AND ASHOT MINASYAN Abstract. We discuss various types of Tits Alternative for subgroups of graph products of groups, and prove that, under some natural conditions, a gr

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Source URL: www.personal.soton.ac.uk

Language: English - Date: 2013-06-17 06:47:15
36Geometric group theory / Combinatorics on words / HNN extension / Artin group / Presentation of a group / Stallings theorem about ends of groups / Amenable group / Abstract algebra / Group theory / Algebra

ON SUBGROUPS OF RIGHT ANGLED ARTIN GROUPS WITH FEW GENERATORS ASHOT MINASYAN Abstract. For each d ∈ N we construct a 3-generated group Hd , which is a subdirect product of free groups, such that the cohomological dimen

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Source URL: www.personal.soton.ac.uk

Language: English - Date: 2015-04-01 09:20:41
37Geometric group theory / Infinite group theory / Tits alternative / Virtually / Jacques Tits / Group / Amenable group / Solvable group / Abstract algebra / Group theory / Mathematics

Tits alternatives for graph products

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Source URL: www.personal.soton.ac.uk

Language: English - Date: 2012-09-28 05:49:56
38Geometric group theory / Amenable group / Ergodic theory / Entailment / Stallings theorem about ends of groups / Orbifold / Abstract algebra / Geometry / Group theory

1 Abstract A countable group Γ is called shift-minimal if every non-trivial measure preserving action of Γ weakly contained in the Bernoulli shift Γ y ([0, 1]Γ , λΓ ) is free. We show that any group Γ whose reduc

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Source URL: www.math.rutgers.edu

Language: English - Date: 2012-12-21 17:27:31
39Measure theory / Geometric group theory / Amenable group / Borel set / Measure / Ultrafilter / Support / Sigma-algebra / Orbifold / Mathematics / Mathematical analysis / Abstract algebra

Ultraproducts of measure preserving actions and graph combinatorics Clinton T. Conley, Alexander S. Kechris, and Robin D. Tucker-Drob 0

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Source URL: www.math.rutgers.edu

Language: English - Date: 2011-05-15 13:11:13
40Geometric group theory / Amenable group / Von Neumann algebra / Riemann surfaces / Hyperbolic geometry / Fuchsian group / Stallings theorem about ends of groups / Abstract algebra / Geometry / Group theory

Shift-minimal Groups Workshop on Applications to Operator Algebras Fields Institute, September 2012

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Source URL: www.math.rutgers.edu

Language: English - Date: 2013-02-24 14:04:44
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