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Cesàro Summability of Taylor Series in Weighted Dirichlet Spaces
Complex Analysis and Operator Theory ( IF 0.8 ) Pub Date : 2020-11-18 , DOI: 10.1007/s11785-020-01058-3
Javad Mashreghi , Pierre-Olivier Parisé , Thomas Ransford

We show that, in every weighted Dirichlet space on the unit disk with superharmonic weight, the Taylor series of a function in the space is \((C,\alpha )\)-summable to the function in the norm of the space, provided that \(\alpha >1/2\). We further show that the constant 1/2 is sharp, in marked contrast with the classical case of the disk algebra.



中文翻译:

加权Dirichlet空间中Taylor级数的Cesàro可加性

我们证明,在具有超调和权重的单位圆盘上的每个加权Dirichlet空间中,该空间中函数的泰勒级数\((C,\ alpha)\)-可等于该空间范数中的函数,即\(\阿尔法> 1/2 \) 。我们进一步证明常数1/2是尖锐的,与圆盘代数的经典情况形成鲜明对比。

更新日期:2020-11-18
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