On the property of Cachazo-Intriligator-Vafa prepotential at the extremum of the superpotential

A. Dymarsky, V. Pestun

We consider CIV-DV prepotential F for N=1 SU(n) SYM theory at the extremum of the effective superpotential and prove the relation $2F-SdF/dS=-2u_{2}Lambd{a}^{2}n/(n^2-1)$