Removability of point singularities of Willmore surfaces

• 成果类型: Article
• 署名作者: Kuwert, E; Schätzle, R
• 刊物名称: ANNALS OF MATHEMATICS
• ISSN/ISSBN: 0003-486X
• DOI: 10.4007/annals.2004.160.315
• 发表日期: 2004
• 页码: 315-357
• 关键词: flow

摘要

We investigate point singularities of Willmore surfaces, which for example appear as blowups of the Willmore flow near singularities, and prove that closed Willmore surfaces with one unit density point singularity are smooth in codimension one. As applications we get in codimension one that the Willmore flow of spheres with energy less than 8pi exists for all time and converges to a round sphere and further that the set of Willmore tori with energy less than 8pi - delta is compact up to Mobius transformations.