List questions from amenability

Published on 14 Dec 2020 - 2:29

567

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Definition of amenability by Følner sequences

Published on 06 Jan 2021 - 16:04

124

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How is this property equivalent to the Reiter Property?

Published on 12 Jan 2021 - 16:33

206

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Extensions and Limits of Inner Amenable Groups

Published on 12 Jan 2021 - 17:18

62

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For discrete group $G$ and $H\leq G$. Show that $G$ also satisfies the Folner condition if $H$ satisfies it and $[G:H]<\infty$.

Published on 23 Feb 2026 - 1:23

51

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Prove the existence of $\Psi\in(\ell_\infty(G))^\ast$ satisfying the amenability conditions

Published on 23 Feb 2026 - 1:23

38

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Left Folner sequence for a semigroup

Published on 31 Mar 2021 - 22:35

334

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How do probability measures on $\mathbb{Z}$ look like?

Published on 08 May 2021 - 13:59

340

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Tarski Monsters are not amenable

Published on 02 Jul 2021 - 7:00

88

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Checking the Folner condition only on a set of generators

Published on 08 Sep 2021 - 14:51

41

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Folner nets for amenable groups and basis of neighborhoods at $e$

Published on 24 Sep 2021 - 4:57

67

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Amenable group which is inverse limit of non-amenable groups

Published on 27 Sep 2021 - 13:32

80

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Definition of virtual diagonals

Published on 10 Nov 2021 - 11:06

149

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Existence of Folner Sequence Implies Left Invariant Mean

Published on 23 Nov 2021 - 17:13

134

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Consequence of Hahn-Banach - norm closed convex hull contains $0$

Published on 31 Dec 2021 - 12:07

List Question

Extention of an Amenable Group by an Amenable Group is Amenable

Definition of amenability by Følner sequences

How is this property equivalent to the Reiter Property?

Extensions and Limits of Inner Amenable Groups

For discrete group $G$ and $H\leq G$. Show that $G$ also satisfies the Folner condition if $H$ satisfies it and $[G:H]<\infty$.

Prove the existence of $\Psi\in(\ell_\infty(G))^\ast$ satisfying the amenability conditions

Left Folner sequence for a semigroup

How do probability measures on $\mathbb{Z}$ look like?

Tarski Monsters are not amenable

Checking the Folner condition only on a set of generators

Folner nets for amenable groups and basis of neighborhoods at $e$

Amenable group which is inverse limit of non-amenable groups

Definition of virtual diagonals

Existence of Folner Sequence Implies Left Invariant Mean

Consequence of Hahn-Banach - norm closed convex hull contains $0$

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