Daniel Bennequin is a French mathematician who gave the first example of an exotic contact structure on $\mathbb{R}^3$ in his dissertation. He was a member of Bourbaki.

On contact geometry and links:

On a cohomological interpretation of entropy:

contact manifold

entropy

Created on August 10, 2021 at 09:57:30. See the history of this page for a list of all contributions to it.