Article ID Journal Published Year Pages File Type
4660770 Topology and its Applications 2006 8 Pages PDF
Abstract

The main result of this paper is the following theorem, related to the missing link in the proof of the topological version of the classical result of Helly: Let be any family of simply connected compact subsets of R2 such that for every i,j∈{0,1,2} the intersections Xi∩Xj are path connected and is nonempty. Then for every two points in the intersection there exists a cell-like compactum connecting these two points, in particular the intersection is a connected set.

Related Topics
Physical Sciences and Engineering Mathematics Geometry and Topology