Triangle Seminars

Abstract:
In this talk we derive a novel and fundamental relation between
C*-algebras and Complex Cobordism.

We endow the space of complex genera with the structure of an infinite Lie
group, with the underlying manifold being isomorphic to the group of
automorphisms of the formal disc, and relate it then to operator algebras.

The group operation introduced can be understood combinatorially in terms
of planar rooted trees. Finally we shall give connections with Conformal
Field Theory.