Séminaire et Groupe de travail GAAO
Vendredi 13 septembre 2019 -
Erik van Erp (Dartmouth) The Heisenberg calculus and cyclic cohomology
Epstein and Melrose studied the Fredholm index problem for certain hypoelliptic operators on contact manifolds. They investigated the problem by placing it in the context of Hochschild homology. They made important progress, but their program has not reached a satisfactory resolution. We revisit this program by studying the index in the context of cyclic cohomology. This is joint work with Alexander Gorokhovsky.
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