# Geometry of pseudodifferential algebra bundles

Varghese Mathai (The University of Adelaide, Australia)

## 時間:

2016-11-07 (星期一) 14:00 - 15:00

## 演講摘要:

I will motivate the construction of pseudodifferential algebra bundles arising in index theory, and also outline the construction of general pseu pseudodifferential algebra bundles (and the associated sphere bundles), showing that there are many that are purely infinite dimensional that do not come from usual constructions in index theory. I will also discuss characteristic classes of such bundles. This is joint work with Richard Melrose.

13:30 - 14:00

## 籌辦人:

Volker Elling (中央研究院數學所)