Video Lectures

While by a result of McDuff the space of symplectic embeddings of a closed 4-ball into an open 4-ball is connected, the situation for embeddings of cubes C4=D2×D2 is very different. For instance, for the open ball B4 of capacity 1, there exists an...

Eliashberg and Thurston showed that taut foliations on 3-manifolds can be approximated by tight contact structures. I will explain a new approach to this theorem which allows one to control the resulting Reeb flow and hence produce many hypertight...

Tensors occur throughout mathematics. Their rank, defined in analogy with matrix rank, is however much more poorly understood, both from a structural and algorithmic viewpoints.

 

This will be an introductory talk to some of the basic issues...

Discussions of the widespread appeal of the cult of Isis in antiquity often omit any mention of the Nubian priests who served the rulers of the Kingdom of Meroe (located south of Egypt in the Sudan) and the royal donations of gold that they...