Existence of self-shrinkers to the degree-one curvature flow with a rotationally symmetric conical end

TL;DR

This paper proves the existence of self-shrinking solutions to a class of curvature flows with rotationally symmetric conical ends, expanding understanding of geometric flows and their singularity models.

Contribution

It establishes the existence of rotationally symmetric self-shrinkers asymptotic to cones for a broad class of degree-one homogeneous curvature functions.

Findings

Existence of self-shrinkers asymptotic to cones

Applicable to a class of degree-one homogeneous functions

Advances understanding of singularity formation in curvature flows

Abstract

Given a smooth, symmetric, homogeneous of degree one function $f\left(\lambda_{1},\cdots,\,\lambda_{n}\right)$ satisfying $\partial_{i}f>0$ for all $i=1,\cdots,\,n$, and a rotationally symmetric cone $\mathcal{C}$ in $\mathbb{R}^{n+1}$, we show that there is a $f$ self-shrinker (i.e. a hypersurface $\Sigma$ in $\mathbb{R}^{n+1}$ which satisfies $f\left(\kappa_{1},\cdots,\,\kappa_{n}\right)+\frac{1}{2}X\cdot N=0$, where $X$ is the position vector, $N$ is the unit normal vector, and $\kappa_{1},\cdots,\,\kappa_{n}$ are principal curvatures of $\Sigma$) that is asymptotic to $\mathcal{C}$ at infinity.