On a construction of stable maps from 3-manifolds into surfaces
Geometric Topology
2026-05-25 v3
Abstract
For any link in the -sphere, we give a visual construction of a stable map from the -sphere into the real plane enjoying the following properties; has no cusp point, the set of definite fold points of is isotopic to the given link and only has certain type of fibers containing two indefinite fold points. As a corollary, we obtain a similar stable map from every closed orientable -manifold into the -sphere.
Keywords
Cite
@article{arxiv.2508.21337,
title = {On a construction of stable maps from 3-manifolds into surfaces},
author = {Gakuto Kato},
journal= {arXiv preprint arXiv:2508.21337},
year = {2026}
}
Comments
14 pages, 16 figures