The existence of a straight line of piecewise Riemannian 2-manifolds

Authors

  • Kazuhiro Kawamura
  • Fumiko Ohtsuka

DOI:

https://doi.org/10.1285/i15900932v18n1p119

Keywords:

Piecewise Riemannian manifolds, Total excess, Geodesic

Abstract

In this paper, we study properties of piecewise Riemannian 2-maniflods which are combinatorial 2-manifolds such that each 2-simplex is a geodesic triangle of some Riemannian 2-manifolds. We will introduce the total excess $e(X)$ of a piecewise Riemannian 2-manifold X and prove the following generalizations of results of Cohn-Vossen and the second author obtained for Riemannian 2-manifolds. Let X a piecewise Riemannian 2-manifolds without boundary having one end.

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Published

01-01-1998

Issue

Section

Articoli