BIRS Workshop Lecture Videos

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BIRS Workshop Lecture Videos

An index theorem for proper cocompact actions of Lie groupoids Tang, Xiang


Given a proper, cocompact action of a Lie groupoid, we define a higher index pairing between invariant elliptic differential operators and smooth groupoid cohomology classes. We will explain a cohomological index formula computing this pairing. This is joint work with Markus Pflaum, and Hessel Posthuma.

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