2017/91/3-4 (11) — DOI: 10.5486/PMD.2017.7753 — pp. 403-425
Full Text Abstract

Parallel axiom and the $2$-nd order differentiability of Busemann functions

Authors: Nobuhiro Innami, Yoe Itokawa, Tetsuya Nagano and Katsuhiro Shiohama

Keywords: Busemann function, parallel, asymptote, Finsler geometry, geodesics

Mathematics Subject Classification: 53C20, 53C22