Classification of bubble-sheet ovals in $\mathbb{R}^{4}$

Fuente: arXiv
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Main Authors: Choi, Beomjun, Daskalopoulos, Panagiota, Du, Wenkui, Haslhofer, Robert, Sesum, Natasa
Format: Preprint
Published: 2022
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author Choi, Beomjun
Daskalopoulos, Panagiota
Du, Wenkui
Haslhofer, Robert
Sesum, Natasa
author_facet Choi, Beomjun
Daskalopoulos, Panagiota
Du, Wenkui
Haslhofer, Robert
Sesum, Natasa
contents In this paper, we prove that any bubble-sheet oval for the mean curvature flow in $\mathbb{R}^4$, up to scaling and rigid motion, either is the $\textrm{O}(2)\times \textrm{O}(2)$-symmetric ancient oval constructed by Hershkovits and the fourth author, or belongs to the one-parameter family of $\mathbb{Z}_2^2\times \textrm{O}(2)$-symmetric ancient ovals constructed by the third and fourth author. In particular, this seems to be the first instance of a classification result for geometric flows that are neither cohomogeneity-one nor selfsimilar.
format Preprint
id arxiv_https___arxiv_org_abs_2209_04931
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Classification of bubble-sheet ovals in $\mathbb{R}^{4}$
Choi, Beomjun
Daskalopoulos, Panagiota
Du, Wenkui
Haslhofer, Robert
Sesum, Natasa
Differential Geometry
Analysis of PDEs
53E10
In this paper, we prove that any bubble-sheet oval for the mean curvature flow in $\mathbb{R}^4$, up to scaling and rigid motion, either is the $\textrm{O}(2)\times \textrm{O}(2)$-symmetric ancient oval constructed by Hershkovits and the fourth author, or belongs to the one-parameter family of $\mathbb{Z}_2^2\times \textrm{O}(2)$-symmetric ancient ovals constructed by the third and fourth author. In particular, this seems to be the first instance of a classification result for geometric flows that are neither cohomogeneity-one nor selfsimilar.
title Classification of bubble-sheet ovals in $\mathbb{R}^{4}$
topic Differential Geometry
Analysis of PDEs
53E10
url https://arxiv.org/abs/2209.04931