Geometry Seminar

February 15, 2007 (Thursday)

517 Meng Wah Complex, HKU

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Professor T.A. Springer

Professor Emeritus, University of Utrecht,

and HKUST and HKU visiting scholar

A survey on the nilpotent variety and Weyl group representations

3:00 – 4:00pm

Abstract: We give a review on the geometry of the nilpotent variety of a semisimple Lie algebra and a uniform construction of Weyl group representations using the nilpotent variety.

Dr. J.-H. Lu

The University of Hong Kong

Some Poisson geometrical properties of Springer's resolution
of the unipotent variety

4:00 – 5:00pm

Abstract: Following Prof. Springer's lecture, I will explain some Poisson and symplectic geometry related to Springer's resolution of the unipotent variety in a complex semi-simple Lie group.

All are welcome