Modularity of Schur index, modular differential equations, and high-temperature asymptotics

Yiwen Pan, Peihe Yang

In this paper we analytically explore the modularity of the flavored Schur index of 4d $\mathcal{N}=2$ SCFTs. We focus on the $A_1$ theories of class-$\mathcal{S}$ and $\mathcal{…