Analytic discs, plurisubharmonic hulls, and non-compactness of the d-bar-Neumann operator

Details Analytic discs, plurisubharmonic hulls, and non-compactness of the d-bar-Neumann operator Analytic discs, plurisubharmonic hulls, and non-compactness of the d-bar-Neumann operator

2004-12-27

arxiv.org/abs/math/0412504v2

Mathematics

Complex Variables

10 pages

Scientific paper

We show that a complex manifold M in the boundary of a smooth bounded pseudoconvex domain in C^n is an obstruction to compactness of the d-bar-Neumann operator on the domain, provided that at some point of M, the Levi form has the maximal possible rank n-1-dim(M) (i.e. the domain is strictly pseudoconvex in the directions transverse to M). In particular, an analytic disc is an obstruction, provided that at some point of the disc, the Levi form has only one zero eigenvalue. We also show that a boundary point where the Levi form has only one zero eigenvalue can be picked up by the plurisubharmonic hull of a set only via an analytic disc in the boundary.

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