The asymptotic geometry of the Teichm\"uller metric: Dimension and rank

Abstract

We analyze the asymptotic cones of Teichm\"uller space with the Teichm\"uller metric, (T(S),dT). We give a new proof of a theorem of Eskin-Masur-Rafi which bounds the dimension of quasiisometrically embedded flats in (T(S),dT). Our approach is an application of the ideas of Behrstock and Behrstock-Minsky to the quasiisometry model we previously built for (T(S),dT).

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