For more information about this meeting, contact Becky Halpenny.
|Title:||"A Lie-algebraic approach to the local index theorem on compact homogeneous spaces"|
|Seminar:||Ph.D. Thesis Defense|
|Speaker:||Seunghun Hong, Adviser: Nigel Higson, Penn State|
|Using a K-theory point of view, R. Bott related the Atiyah-Singer index theorem for elliptic operators on compact homogeneous spaces to the Weyl character formula. I shall explain how to prove the local index theorem for compact homogenous spaces using Lie algebra methods. The method follows in outline the proof of the local index theorem due to N. Berline and M. Vergne. But the use of Kostant’s cubic Dirac operator in place of the Riemannian Dirac operator leads to substantial simplifications. An important role is also played by the quantum Weil algebra of A. Alekseev and E. Meinrenken.|
Room Reservation Information
|Date:||05 / 25 / 2012|
|Time:||10:00am - 12:00pm|