Abstract
Let \({\Omega\subset\subset\mathbb{C}^{n}}\) , n ≥ 3, be a smoothly bounded domain. Suppose that Ω admits a smooth defining function which is plurisubharmonic on the boundary of Ω. Then a Diederich–Fornæss exponent can be chosen arbitrarily close to 1, and the closure of Ω admits a Stein neighborhood basis.
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Research of J. E. Fornæss was partially supported by an NSF grant. Research of A.-K. Herbig was supported by FWF grant P19147.
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Fornæss, J.E., Herbig, AK. A note on plurisubharmonic defining functions in \({\mathbb{C}^{n}}\) . Math. Ann. 342, 749–772 (2008). https://doi.org/10.1007/s00208-008-0255-y
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DOI: https://doi.org/10.1007/s00208-008-0255-y