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 Yearling
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  • 0 posts edited
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  • 8 votes cast
Jul
8
accepted What are good references for the action of $\Gamma := \pi_1(S)$ on $S^1 = \partial \mathbb{H}^2$, where $S$ is a closed hyperbolic surface
Jul
6
comment What are good references for the action of $\Gamma := \pi_1(S)$ on $S^1 = \partial \mathbb{H}^2$, where $S$ is a closed hyperbolic surface
sorry I haven't understood your answer. What does it mean: "ergodic with respect to the Lebesgue measure class on S^1"? Who are the measure-preserving transformations (which are necessary in order to talk about ergodicity)?
Jul
2
revised What are good references for the action of $\Gamma := \pi_1(S)$ on $S^1 = \partial \mathbb{H}^2$, where $S$ is a closed hyperbolic surface
added 101 characters in body
Jul
2
revised What are good references for the action of $\Gamma := \pi_1(S)$ on $S^1 = \partial \mathbb{H}^2$, where $S$ is a closed hyperbolic surface
manifold --> surface
Jul
2
revised What are good references for the action of $\Gamma := \pi_1(S)$ on $S^1 = \partial \mathbb{H}^2$, where $S$ is a closed hyperbolic surface
added 54 characters in body
Jul
2
revised What are good references for the action of $\Gamma := \pi_1(S)$ on $S^1 = \partial \mathbb{H}^2$, where $S$ is a closed hyperbolic surface
edited title
Jul
2
asked What are good references for the action of $\Gamma := \pi_1(S)$ on $S^1 = \partial \mathbb{H}^2$, where $S$ is a closed hyperbolic surface
Jun
7
awarded  Yearling
Apr
27
accepted Examples of connections between bounded cohomology and geometric properties of groups
Apr
23
comment Examples of connections between bounded cohomology and geometric properties of groups
Your examples are quite interesting. All of them relate bounded cohomology with (some subclasses of) hyperbolic groups or generalizations. Are there examples genuinely unrelated to hyperbolic groups and generalizations (as the example of amenable groups)?
Apr
22
revised Examples of connections between bounded cohomology and geometric properties of groups
added 4 characters in body
Apr
21
asked Examples of connections between bounded cohomology and geometric properties of groups
Mar
3
revised If X is a simplicial complex, are the complex of simplicial chains and the one of cellular chains of X identical?
second PPS
Mar
2
comment If X is a simplicial complex, are the complex of simplicial chains and the one of cellular chains of X identical?
I think that there is an obvious homomorphism between the cellular chain complex and the simplicial one. I claim that this homomorphism is an isomorphism of chain complexes (isomorphism in every degree, commuting with the respective boundaries)
Mar
2
asked If X is a simplicial complex, are the complex of simplicial chains and the one of cellular chains of X identical?
Dec
18
awarded  Caucus
Dec
9
comment Are there “interesting” examples of complete finite-volume non-compact Riemannian manifolds that are not non-positively curved?
exactly: the curvature is positive somewhere
Dec
9
asked Are there “interesting” examples of complete finite-volume non-compact Riemannian manifolds that are not non-positively curved?
Oct
15
revised (locally) “almost convex” property of the distance function in a general Riemannian manifold
deleted 18 characters in body
Oct
13
revised (locally) “almost convex” property of the distance function in a general Riemannian manifold
edited title