Abstract
Let G be a real Lie group, Λ ⊆ G a lattice, and X = G/Λ. We fix a probability measure μ on G and consider the left random walk induced on X. It is assumed that μ is aperiodic, has a finite first moment, spans a semisimple algebraic group without compact factors, and has two non mutually singular convolution powers. We show that for every starting point x ∈ X, the n-th step distribution μn*δx of the walk weak-* converges toward some homogeneous probability measure on X.
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The author has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No. 803711)
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Bénard, T. Equidistribution of mass for random processes on finite-volume spaces. Isr. J. Math. 255, 417–422 (2023). https://doi.org/10.1007/s11856-022-2422-3
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DOI: https://doi.org/10.1007/s11856-022-2422-3