A note of the Torelli spaces of non-orientable compact Klein surfaces.
A note on a theorem of Chuaqui and Gevirtz.
A note on counting cuspidal excursions.
A note on geodesics in infinite-dimensional Teichmüller spaces.
A note on holomorphic mappings with two fixed points
A note on isolated points in the branch locus of the moduli space of compact Riemann surfaces.
A inequality for Kleinian groups.
A pseudo-trigonometry related to Ptolemy's theorem and the hyperbolic geometry of punctured spheres
A hyperbolic geodesic joining two punctures on a Riemann surface has infinite length. To obtain a useful distance-like quantity we define a finite pseudo-length of such a geodesic in terms of the hyperbolic length of its surrounding geodesic loop. There is a well defined angle between two geodesics meeting at a puncture, and our pseudo-trigonometry connects these angles with pseudo-lengths. We state and prove a theorem resembling Ptolemy's classical theorem on cyclic quadrilaterals and three general...
A reduction for asymptotic Teichmüller spaces.
A remark on Abel's Theorem and the mapping of linear series.
A remark on degenerate groups.
A remark on polygonal quasiconformal maps.
A remark on the Ahlfors--Lehto univalence criterion.
A rigidity theorem for Möbius groups.
A scattering theory for automorphic functions
A short proof of non-Gromov hyperbolicity of Teichmüller spaces.
A sufficient condition for Teichmüller spaces to have smallest possible inner radii.
A Symbolic Dynamics for Geodesics on Punctured Riemann Surfaces.
A theorem of differential mappings of Riemann surfaces.
A trace-class rigidity theorem for Kleinian groups.