The Martin boundary of relatively hyperbolic groups with virtually abelian parabolic subgroups (Q2070049)
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scientific article; zbMATH DE number 7461687
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | The Martin boundary of relatively hyperbolic groups with virtually abelian parabolic subgroups |
scientific article; zbMATH DE number 7461687 |
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The Martin boundary of relatively hyperbolic groups with virtually abelian parabolic subgroups (English)
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21 January 2022
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Summary: Given a probability measure on a finitely generated group, its Martin boundary is a way to compactify the group using the Green's function of the corresponding random walk. We give a complete topological characterization of the Martin boundary of finitely supported random walks on relatively hyperbolic groups with virtually abelian parabolic subgroups. In particular, in the case of nonuniform lattices in the real hyperbolic space \(\mathbb{H}^n \), we show that the Martin boundary coincides with the \(CAT(0)\) boundary of the truncated space.
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random walks on groups
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hyperbolic groups relatively to a system of virtually abelian subgroups
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Martin and Bowditch compactifications
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