Colloquium - "The Onsager Theorem and folding papers" , Camillo De Lellis
Camillo De Lellis
University of Zurich
Title: The Onsager Theorem and folding papers
Abstract: In the fifties John Nash astonished the geometers with his celebrated isometric embedding theorems. A folkloristic explanation of his first theorem is that you should be able to put any piece of paper in your pocket without crumpling or folding it, no matter how large it is. Ten years ago La'szlo' Sze'kelyhidi and I discovered unexpected similarities with the behavior of some classical equations in fluid dynamics. Our remark sparked a series of discoveries and works which have gone in several directions. Among them the most notable is the recent proof of Phil Isett of a long-standing conjecture of Lars Onsager in the theory of turbulent flows.
Refreshments will be available at 3:00 pm in HH/216