A characterization of harmonic measures on laminations by hyperbolic Riemann surfaces
Yuri Bakhtin, Matilde Martánez (2008)
Annales de l'I.H.P. Probabilités et statistiques
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denotes a (compact, nonsingular) lamination by hyperbolic Riemann surfaces. We prove that a probability measure on is harmonic if and only if it is the projection of a measure on the unit tangent bundle of which is invariant under both the geodesic and the horocycle flows.