Plurisubharmonically separable complex manifolds

Abstract

Let $M$ be a complex manifold and $PS{H}^{cb}(M)$ be the space of bounded continuous plurisubharmonic functions on $M$. In this paper we study when functions from $PS{H}^{cb}(M)$ separate points. Our main results show that this property is equivalent to each of the following properties of $M$: (1) the core of $M$ is empty. (2) for every $w_0\in M$ there is a continuous plurisubharmonic function $u$ with the logarithmic singularity at $w_0$. Moreover, the core of $M$ is the disjoint union of 1-pseudoconcave in the sense of Rothstein sets $E_j$ with the following Liouville property: every function from $PS{H}^{cb}(M)$ is constant on each of $E_j$.

11 pages, to appear in Proceedings of the American Mathematical Society