On sections of configurations of points on orientable surfaces
Geometric Topology
2025-06-10 v3
Abstract
We study the configuration space of distinct, unordered points on compact orientable surfaces of genus , denoted . Specifically, we address the section problem, which concerns the addition of distinct points to an existing configuration of distinct points on in a way that ensures the new points vary continuously with respect to the initial configuration. This problem is equivalent to the splitting problem in surface braid groups. With an algebraic approach, for and , we establish a necessary condition for the existence of a section, showing that if a section exists, then must be a multiple of . For and , we take a geometric approach to demonstrate that a section exists for all values of .
Keywords
Cite
@article{arxiv.2411.16409,
title = {On sections of configurations of points on orientable surfaces},
author = {Stavroula Makri},
journal= {arXiv preprint arXiv:2411.16409},
year = {2025}
}
Comments
16 pages, 1 figure