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Equidistribution of Eisenstein series on convex co-compact hyperbolic manifolds

2011/07/13 by Guillarmou, Colin, Naud, Frederic
#Differential Geometry (math.DG) #FOS: Mathematics #FOS: Physical sciences #Mathematical Physics (math-ph) #Spectral Theory (math.SP)

paper · doi:10.48550/arxiv.1107.2655

Abstract

For convex co-compact hyperbolic manifolds Γ\backslash ℍn+1 for which the dimension of the limit set satisfies δΓ< n/2, we show that the high-frequency Eisenstein series associated to a point ξ "at infinity" concentrate microlocally on a measure supported by (the closure of) the set of points in the unit cotangent bundle corresponding to geodesics ending at ξ. The average in ξ of these limit measures equidistributes towards the Liouville measure.

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