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Study group "Patterson-Sullivan theory": Joachim Hilgert, "Conformal densities on CAT(-1) spaces"

Abstract: Generalization of the results of the previous talk to general CAT(−1) spaces. Here we broaden the pic-
ture considered in the previous talk even further, look at the example of trees in some detail, and finally
discuss where the theory of Patterson-Sullivan measures comes at its limits.
ˆBurger and Mozes, 1996 “CAT(-1)-spaces, divergence groups and their commensurators”
ˆRoblin, 2003 “Ergodicity and equidistribution in negative curvature” (French)