Visual sphere and Thurston's boundary of the Universal Teichmüller space

Abstract

Thurston's boundary to the universal Teichmüller space $T(\mathbb{D})$ is the space $PM{L}_{bdd}(\mathbb{D})$ of projective bounded measured laminations of $\mathbb{D}$. A geodesic ray in $T(\mathbb{D})$ is of Teichmüller type if it shrinks vertical foliation of an integrable holomorphic quadratic differential. In a prior work we established that each Teichmüller geodesic ray limits to a multiple (by the reciprocal of the length of the leaves) of vertical foliation of the quadratic differential. Certain non-integrable holomorphic quadratic differential induce geodesic rays and we consider their limit points in $PM{L}_{bdd}(\mathbb{D})$. Somewhat surprisingly, the support of the limiting projective measured laminations might be a geodesic lamination whose leaves are not homotopic to leaves of either vertical or horizontal foliation of the non-integrable holomorphic quadratic differential.

22 pages, 2 figures. arXiv admin note: text overlap with arXiv:1505.06695

References in corpus (1)

• Limits in PMF of Teichmuller geodesics