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Caltech

Noncommutative Geometry Seminar

Wednesday, March 11, 2015
2:30pm to 3:30pm
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Noncommutative Geometry, Equivariant Cohomology and Conformal Geometry
Raphael Ponge, Visiting Scholar, Mathematics, Seoul National University & UC Berkeley,

We will explain how to apply the framework of noncommutative
geometry in the setting of conformal geometry. We plan to describe three
main results. The first result is a reformulation of the local index
formula of Atiyah-Singer in conformal geometry, i.e., in the setting of
the action of a group of conformal-diffeomorphisms. The second result is
the construction of new conformal invariants out of equivariant
characteristic classes. The third result is a version in conformal
geometry of the Vafa-Witten inequality for eigenvalues of Dirac operators.
This is joint work with Hang Wang (University of Adelaide).
 

For more information, please contact Farzad Fathizadeh by email at [email protected] or visit http://www.math.caltech.edu/~ncg/.