A Sufficient condition for compactness of Hankel operators
A Sufficient condition for compactness of Hankel operators
复制标题
Hankel算子紧性的充分条件
DOI:
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发表时间:
2020
期刊:
影响因子:
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通讯作者:
E. Straube
中科院分区:
文献类型:
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作者:
Mehmet Çelik;Sonmez Sahutoglu;E. Straube
Let $Omega$ be a bounded convex domain in $mathbb{C}^{n}$. We show that if $varphi in C^{1}(overline{Omega})$ is holomorphic along analytic varieties in $bOmega$, then $H^{q}_{varphi}$, the Hankel operator with symbol $varphi$, is compact. We have shown the converse earlier, so that we obtain a characterization of compactness of these operators in terms of the behavior of the symbol relative to analytic structure in the boundary. A corollary is that Toeplitz operators with these symbols are Fredholm (of index zero).