Basmajian type inequalities for maximal representations.

Beatrice Pozzetti (Warwick)

Monday 7th November, 2016 16:00-17:00 Maths 204


An injective homomorphism of the fundamental group of an hyperbolic surface in the symplectic group Sp(2n,R) is a maximal representation if it maximizes the so-called Toledo invariant. Maximal representations form interesting and well studied components of the character variety generalizing the Teichmuller space, that is encompassed in the case n=1. Basmajian's equality allows to compute the length of the boundary of a hyperbolic surface in term of the lengths of the orthogeodesics: geodesic segments orthogonal to the boundary at both endpoints. In joint work with Federica Fanoni we provide a generalization of this result to the setting of maximal representations.

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