UNIFORM APPROXIMATION OF METRICS BY GRAPHS

作者:Burago Dmitri*; Ivanov Sergei
来源:Proceedings of the American Mathematical Society, 2015, 143(3): 1241-1256.

摘要

We say that a metric graph is uniformly bounded if the degrees of all vertices are uniformly bounded and the lengths of edges are pinched between two positive constants; a metric space is approximable by a uniform graph if there is one within a finite Gromov-Hausdorff distance. We show that the Euclidean plane and Gromov hyperbolic geodesic spaces with bounded geometry are approximable by uniform graphs, and pose a number of open problems.

  • 出版日期2015-3