Involutions and simple closed geodesics on Riemann surfaces.
Involutions of compact Klein surfaces.
Isometrische und Konforme Verheftung
Isomorphisms Between Certain Function Fields Over Compact Riemann Surfaces.
Isoperimetric inequalities and Dirichlet functions of Riemann surfaces.
We prove that if a Riemann surface has a linear isoperimetric inequality and verifies an extra condition of regularity, then there exists a non-constant harmonic function with finite Dirichlet integral in the surface.We prove too, by an example, that the implication is not true without the condition of regularity.
Isoperimetric inequalities in Riemann surfaces of infinite type.
Iteration on Teichmüller space.
Jørgensen's inequality for discrete convergence groups.
Klein Surfaces with Maximal Symmetry and Their Groups of Automorphisms.
Kleinian groups (a survey)
Kleinian groups and the complex of curves.
Kleinian groups and the rank problem.
Kleinian groups, the Teichmueller space and Mostow's rigidity theorem.
Koebe's general uniformisation theorem for planar Riemann surfaces
We give a complete and transparent proof of Koebe's General Uniformisation Theorem that every planar Riemann surface is biholomorphic to a domain in the Riemann sphere ℂ̂, by showing that a domain with analytic boundary and at least two boundary components on a planar Riemann surface is biholomorphic to a circular-slit annulus in ℂ.
Konforme Verheftung von Gebieten mit beschränkter Randdrehung.
Konstruktion von Zahl- und Funktionenkörpern mit vorgegebener Galoisgruppe.
Kreisscheiben auf Riemannschen Flächen und Eigenwerte des Laplace-Operators.
Le symbole modéré
Le théorème de Torelli pour les intersections de trois quadriques.
Leafwise hyperbolicity; a correction.