On the length spectrum metric in infinite dimensional Teichmüller spaces

Abstract

We consider the length spectrum metric dL in infinite dimensional Teichmuller space T(R0). It is known that dL defines the same topology as that of the Teichmuller metric dT on T(R0) if R0 is a topologically finite Riemann surface. In 2003, Shiga proved that dL and dT define the same topology on T(R0) if R0 is a topologically infinite Riemann surface which can be decomposed into pairs of pants such that the lengths of all their boundary components except punctures are uniformly bounded by some positive constants from above and below. In this paper, we extend Shiga's result to Teichmuller spaces of Riemann surfaces satisfying a certain geometric condition.