On a theory of Dirac operators for rational Cherednik algebras

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• Marcelo De Martino (Oxford)
• Wednesday 02 May 2018, 16:30-17:30
• MR12.

If you have a question about this talk, please contact Christopher Brookes.

In this joint work with D. Ciubotaru, we introduce the notions of local and global indices of Dirac operators for a rational Cherednik algebra H, with underlying reflection group G. In the local theory, I will report on some relations between the (local) Dirac index of a simple module in category O, the graded G-character and the composition series polynomials for standard modules. In the global theory, we introduce an “integral-reflection” module over which we define and compute the index of a (global) Dirac operator and show that the index is independent of the parameters. If time permits, I will discuss some local-global relations.

This talk is part of the Algebra and Representation Theory Seminar series.

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