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math.GR2020
Analogs of complementary series for CAT(-1) groups
Kevin Boucher
In this paper we extend the construction of complementary series representations to convex-cocompact isometry groups of CAT(-1) spaces with conditionally negative metrics. Our appr…
math.GR2018
On non-amenable embeddable spaces in relation with free products
Kévin Boucher
In this paper we give sufficient conditions for a free product of residually finite groups to admit an embeddable box space. This generalizes the constructions of Arzhantseva, Guen…