A quantum isomonodromy equation and its application to N=2 SU(N) gauge theories
arXiv:1011.0292 · doi:10.1088/1751-8113/44/5/055403
Abstract
We give an explicit differential equation which is expected to determine the instanton partition function in the presence of the full surface operator in N=2 SU(N) gauge theory. The differential equation arises as a quantization of a certain Hamiltonian system of isomonodromy type discovered by Fuji, Suzuki and Tsuda.
15 pages, v2: typos corrected and references added, v3: discussion, appendix and references added