5 citations · 6 across the 3 of their papers we have counts for
3 papers
math.CV2008★ 5 cited
Gromov hyperbolicity of Denjoy domains with hyperbolic and quasihyperbolic metrics
Peter Hästö, Henri Linden, Ana Portilla +2
We obtain explicit and simple conditions which in many cases allow one decide, whether or not a Denjoy domain endowed with the Poincare or quasihyperbolic metric is Gromov hyperbol…
math.CV2008★ 1 cited
A real variable characterization of Gromov hyperbolicity of flute surfaces
Ana Portilla, Jose M. Rodriguez, Eva Touris
In this paper we give a characterization of the Gromov hyperbolicity of trains (a large class of Denjoy domains which contains the flute surfaces) in terms of the behavior of a rea…
math.DG2008
Structure Theorem for Riemannian surfaces with arbitrary curvature
Ana Portilla, Jose M. Rodriguez, Eva Touris
In this paper we prove that any Riemannian surface, with no restriction of curvature at all, can be decomposed into blocks belonging just to some of these types: generalized Y-piec…