Calculus of Variations and Geometric Measure Theory

R. Buzano - R. Haslhofer - O. Hershkovits

The moduli space of two-convex embedded tori

created by muller on 12 Jun 2018
modified on 13 Jun 2022


Published Paper

Inserted: 12 jun 2018
Last Updated: 13 jun 2022

Journal: International Mathematics Research Notices IMRN
Volume: 2019
Year: 2019
Doi: 10.1093/imrn/rnx125

ArXiv: 1703.01758 PDF


In this short article we investigate the topology of the moduli space of two-convex embedded tori $S^{n-1}\times S^1\subset \mathbb{R}^{n+1}$. We prove that for $n \geq 3$ this moduli space is path-connected, and that for $n = 2$ the connected components of the moduli space are in bijective correspondence with the knot classes associated to the embeddings. Our proof uses a variant of mean curvature flow with surgery developed in our earlier article (arXiv:1607.05604) where neck regions are deformed to tiny strings instead of being cut out completely, an approach which preserves the global topology, embeddedness, as well as two-convexity.