Toda Theories , Matrix Models , Topological Strings , and N = 2 Gauge Systems

We consider the topological string partition function, including the Nekrasov deformation , for type IIB geometries with an A n−1 singularity over a Riemann surface. These models realize the N = 2 SU (n) superconformal gauge systems recently studied by Gaiotto and collaborators. Employing large N dualities we show why the partition function of topo-logical… CONTINUE READING