Levi problem in complex manifolds
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Publication:1659908
DOI10.1007/S00208-017-1539-XzbMATH Open1410.32012arXiv1610.07768OpenAlexW2540726712MaRDI QIDQ1659908
Author name not available (Why is that?)
Publication date: 23 August 2018
Published in: (Search for Journal in Brave)
Abstract: Let U be a pseudoconvex open set in a complex manifold M. When is U a Stein manifold? There are classical counter examples due to Grauert, even when U has real-analytic boundary or has strictly pseudoconvex points. We give new criteria for the Steinness of U and we analyze the obstructions. The main tool is the notion of Levi-currents. They are positive -closed currents T of bidimension (1,1) and of mass 1 directed by the directions where all continuous psh functions in have vanishing Levi-form. The extremal ones, are supported on the sets where all continuous psh functions are constant. We also construct under geometric conditions, bounded strictly psh exhaustion functions, and hence we obtain Donnelly- Fefferman weights. To any infinitesimally homogeneous manifold, we associate a foliation. The dynamics of the foliation determines the solution of the Levi-problem. Some of the results can be extended to the context of pseudoconvexity with respect to a Pfaff-system.
Full work available at URL: https://arxiv.org/abs/1610.07768
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