Essential norms of composition operators between weighted bergman spaces of the unit disc

Essential norms of composition operators between weighted bergman spaces of the unit disc
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DOI:
10.1007/s10114-012-0070-y
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发表时间:
2012-11
期刊:
Acta Mathematica Sinica, English Series
影响因子:
--
通讯作者:
Luo Luo-Luo;Jing Chen
Luo Luo-Luo;Jing Chen
中科院分区:
其他
文献类型:
--
作者:
Luo Luo-Luo;Jing Chen

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设D是复平面上的开单位圆盘,H(D)表示D中的全纯函数空间。对于α>− 1,我们定义D上的加权测度dAα为dAα(w)=[log(1/|W|)] α dA(w),其中dA是D上的归一化Lebesgue测度。当0< p<∞且α>-1时,加权Bergman空间Ap α(D)定义为满足fAp α的函数f∈ H(D)
Let D be the open unit disk in the complex plane and H (D) denote the space of all holomorphic functions in D. For α>− 1, we define the weighted measure dAα on D by dAα (w)=[log (1/| w|)] α dA (w), where dA is the normalized Lebesgue measure on D. For 0< p<∞ and α>− 1, the weighted Bergman space A p α (D) is defined to be those functions f∈ H (D) satisfying fAp α