Speaker: Dr. Marco Aldi
Title: Vertex algebras, hyperbolic geometry and twisted T-duality.
Abstract: Lattice vertex algebras arise naturally in the quantization
of the sigma-model with target a torus. We explain how the quantization
of the sigma-model with target a (twisted) nilmanifold leads to a
generalization of lattice vertex algebras that are most conveniently described
in terms of hyperbolic geometry. This is joint work with R. Heluani.