An extension theorem for separately holomorphic functions with singularities

Details An extension theorem for separately holomorphic functions with singularities An extension theorem for separately holomorphic functions with singularities

2001-04-07

arxiv.org/abs/math/0104089v3

Ann. Polon. Math. 80 (2003), 143-161.

Mathematics

Complex Variables

20 pages; This a new version of the paper (including "An extension theorem for separately holomorphic functions with singulari

Scientific paper

Let $D_j\subset\Bbb C^{k_j}$ be a pseudoconvex domain and let $A_j\subset D_j$ be a locally pluripolar set, $j=1,...,N$. Put$$X:=\bigcup_{j=1}^N A_1\times...\times A_{j-1}\times D_j\times A_{j+1}\times...\times A_N\subset\Bbb C^{k_1+...+k_N}.$$Let $U$ be an open connected neighborhood of $X$ and let $M\varsubsetneq U$ be an analytic subset. Then there exists an analytic subset $\hat M$ of the `envelope of holomorphy' $\hat X$ of $X$ with $\hat M\cap X\subset M$ such that for every function $f$ separately holomorphic on $X\setminus M$ there exists an $\hat f$ holomorphic on $\hat X\setminus\hat M$ with $\hat f|_{X\setminus M}=f$. The result generalizes special cases which were studied in \cite{\"Okt 1998}, \cite{\"Okt 1999}, \cite{Sic 2000}, and \cite{Jar-Pfl 2001}.

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