A Criterion for Weak Convergence on Berkovich Projective Space

We give a criterion for the weak convergence of unit Borel measures on the N-dimensional Berkovich projective space over a complete non-archimedean field. As an application, we give a sufficient condition for equidistribution in terms of a strong Zariski-density property on the scheme-theoretic projective space over the residue field. As a second application, in the case of residue characteristic zero we give an ergodic-theoretic equidistribution result for the powers of a point in the N-dimensional unit torus. This is a non-archimedean analogue of a well-known complex equidistribution result of Weyl, and its proof makes essential use of a theorem of Mordell-Lang type due to Laurent.

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