On conformally Kähler, Einstein manifolds

Abstract

We prove that any compact complex surface with c 1 > 0 c_1>0 admits an Einstein metric which is conformally related to a Kähler metric. The key new ingredient is the existence of such a metric on the blow-up C P 2 # 2 C P 2 ¯ \mathbb {CP}_2\# 2\overline {\mathbb {CP}_2} of the complex projective plane at two distinct points.