Simultaneous coordinates on Teichmuller space & measured foliations naturalizing the Thurston compactification

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Catherine Pfaff, IAS & Queen's University
Fine Hall 314

The Teichmuller space T(S) for a closed orientable surface S encodes the choices for a hyperbolic structure on that surface S. Thurston defined a compactification on such a Teichmuller space听T(S)听using lengths of simple closed curves. Since the boundary of T(S) can be viewed as the space of projective classes of measured foliations on S and the Teichmuller space听T(S)听is an open ball, it is natural to hope that, with the right coordinates on听 T(S), the Thurston compactification will in fact be the radial compactication. We define a new coordinate system on a Teichmuller space, and corresponding space of measured听foliations, so that the听Thurston compactification will indeed be the radial compactification. Results presented are joint work in progress with Daryl Cooper.