论文标题
带有段凸的三明治
A sandwich with segment convexity
论文作者
论文摘要
本说明的目的是为成对的功能提供足够的条件,以便当基础结构是cartan cartan歧管时或更广泛地说:降低的birkhoff- beatley系统。还研究了凸壳的一些外来行为。
The aim of this note is to give a sufficient condition for pairs of functions to have a convex separator when the underlying structure is a Cartan--Hadamard manifold, or more generally: a reduced Birkhoff--Beatley system. Some exotic behavior of convex hulls are also studied.