Dessins d'Enfants, Seiberg-Witten Curves and Conformal Blocks

Understand

We show how to map Grothendieck's dessins d'enfants to algebraic curves as Seiberg-Witten curves, then use the mirror map and the AGT map to obtain the corresponding 4d $\mathcal{N}=2$ supersymmetric instanton partition functions and 2d Virasoro conformal blocks.

• We explicitly demonstrate the 6 trivalent dessins with 4 punctures on the sphere.
• We find that the parametrizations obtained from a dessin should be related by certain duality for gauge theories.
• Then we will discuss that some dessins could correspond to conformal blocks satisfying certain rules in different minimal models.