Combinatorial and probabilistic properties of systems of numeration

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Date(s) - 14/04/2015
11 h 40 min - 12 h 20 min


Let G=(G_n)_n be a strictly increasing sequence of positive integers with G_0=1. We study the system of numeration defined by this sequence by looking at the corresponding compactification K_G of ℕ and the extension of the addition-by-one map τ on K_G (the “odometer”). We give sufficient conditions for the existence and uniqueness of τ-invariant measures on K_G in terms of combinatorial properties of G.


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