Exceptional Seiberg-Witten geometry with massive fundamental matters

We propose Seiberg-Witten geometry for N=2 gauge theory with gauge group E6 with massive Nf fundamental hypermultiplets. The relevant manifold is described as a fibration of the ALE space of E6 type. It is observed that the fibering data over the base CP1 has an intricate dependence on hypermultiplet bare masses.