Bourbaki Seminar 1081 : Min-max methods and the Willmore conjecture, after Fernando Cod\'a Marques and Andr\'e Arroja Neves
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Publication:2967785
zbMATH Open1356.53061arXiv1402.1271MaRDI QIDQ2967785
Publication date: 2 March 2017
Abstract: Two years ago, F.C. Marques and A.A. Neves implemented, in the framework of closed rectifiable 2-dimensional currents of the 3-dimensional sphere, a min-max method in geometric measure theory due to F. Almgren and J. Pitts. Using this approach they succeeded in proving that the famous Clifford torus minimizes the area among all closed minimal surfaces of non-zero genus in . Another spectacular consequence of their work is to provide a proof of the Willmore conjecture. The goal of this talk is to discuss first the general framework of these two theorems of Marques and Neves. We shall then present the structures and some key details of their proofs. We will then address the scope of this remarkable contribution to the calculus of variations on surfaces in a 3-dimensional space.
Full work available at URL: https://arxiv.org/abs/1402.1271
Variational problems in a geometric measure-theoretic setting (49Q20) Differential geometry of immersions (minimal, prescribed curvature, tight, etc.) (53C42) Differential geometric aspects of harmonic maps (53C43) Harmonic maps, etc. (58E20)
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