Shy Maps in Topology
Geometric Topology
2018-05-02 v4 General Topology
Abstract
There is a concept in digital topology of a shy map. We define an analogous concept for topological spaces: We say a function is shy if it is continuous and the inverse image of every path-connected subset of its image is path-connected. Some basic properties of such maps are presented. For example, every shy map onto a semilocally simply connected space induces a surjection of fundamental groups (but a shy map onto a space that is not semilocally simply connected need not do so).
Cite
@article{arxiv.1705.09323,
title = {Shy Maps in Topology},
author = {Laurence Boxer},
journal= {arXiv preprint arXiv:1705.09323},
year = {2018}
}