Energy Estimates for the Tracefree Curvature of Willmore Surfaces and Applications

Yann Bernard, Paul Laurain, Nicolas Marque

Research output: Contribution to journalArticleResearchpeer-review

Abstract

We prove an ε-regularity result for the tracefree curvature of a Willmore surface with bounded second fundamental form. For such a surface, we obtain a pointwise control of the tracefree second fundamental form from a small control of its L2-norm. Several applications are investigated. Notably, we derive a gap statement for surfaces of the aforementioned type. We further apply our results to deduce regularity results for conformal minimal spacelike immersions into the de Sitter space S4 , 1.

Original languageEnglish
Article number8
Number of pages28
JournalArchive for Rational Mechanics and Analysis
Volume247
Issue number1
DOIs
Publication statusPublished - Feb 2023

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