The coefficients of the Seiberg-Witten prepotential as intersection numbers (?)

R. Flume, R. Poghossian, H. Storch

The $n$-instanton contribution to the Seiberg-Witten prepotential of $\mathbf{N}=2$ supersymmetric $d=4$ Yang Mills theory is represented as the integral of the exponential of an equi…