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Complex Neumann type boundary problem and decomposition of Lebesgue spaces
In this article, we study the generalization of the the
decomposition $W_p^m(G)=\mathcal O_p^m(G)\oplus\partial
W_{p,0}^{m+1}(G),
p>1,m=0,\pm 1,\cdots$ to the case of several complex variables. More
precisely, we consider the Lebesgue space $L_2(G)$ and prove that
the above decomposition is closely related to the solvability of a
complex Neumann problem whose solvability is equivalent to the
complex version of Poincaré's inequality.