منابع مشابه
A discrete Lefschetz formula
A Lefschetz formula is given that relates loops in a regular finite graph to traces of a certain representation. As an application the poles of the Ihara/Bass zeta function are expressed as dimensions of global section spaces of locally constant sheaves.
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Let (G,μ) be a discrete group equipped with a generating probability measure, and let Γ be a finite index subgroup of G. A μ-random walk on G, starting from the identity, returns to Γ with probability one. Let θ be the hitting measure, or the distribution of the position in which the random walk first hits Γ. We prove that the Furstenberg entropy of a (G,μ)-stationary space, with respect to the...
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ژورنال
عنوان ژورنال: Complex Analysis and Operator Theory
سال: 2009
ISSN: 1661-8254,1661-8262
DOI: 10.1007/s11785-009-0038-9