English

Analytic Discs, Global Extremal Functions and Projective Hulls in Projective Space

Complex Variables 2013-05-22 v2

Abstract

Using a recent result of L\'arusson and Poletsky regarding plurisubharmonic subextensions we prove a disc formula for the quasiplurisubharmonic global extremal function for domains in complex projective space. As a corollary we get a characterization of the projective hull for connected compact sets in complex projective space by the existence of analytic discs.

Keywords

Cite

@article{arxiv.1304.1704,
  title  = {Analytic Discs, Global Extremal Functions and Projective Hulls in Projective Space},
  author = {Benedikt Steinar Magnusson},
  journal= {arXiv preprint arXiv:1304.1704},
  year   = {2013}
}

Comments

15 pages, v2: added a section (4.1) with comparison of Theorem 4.5 and the characterization of the projective hull by Drnovsek and Forstneric [1], and fixed some minor errors

R2 v1 2026-06-21T23:54:34.203Z