Description of Simple Exceptional Sets in the Unit Ball

Author: Kot Piotr  

Publisher: Springer Publishing Company

ISSN: 0011-4642

Source: Czechoslovak Mathematical Journal, Vol.54, Iss.1, 2004-03, pp. : 55-63

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Abstract

For z ∈ ∂Bn, the boundary of the unit ball in \Bbb {C}^n \ {\rm let} \ \Lambda(2)=\{ \lambda : \vert \lambda \vert \leqslant 1 \}. If f \in \bbb{o}(b^n) then we call e(f)=\{ z \in \partial b^n: \int_{\lambda(z)} \vert f(z) \vert ^2 d\lambda(z)=\infty \} the exceptional set for f. In this note we give a tool for describing such sets. Moreover we prove that if E is a Gδ and fσ subset of the projective (n − 1)-dimensional space \bbb{p}^{n-1}=\bbb{p}(\bbb{c}^n) then there exists a holomorphic function f in the unit ball Bn so that E(f) = E.