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arXiv 2006.07008math.FA
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巴拿赫空间上与非负算子相关的Besov空间

Besov spaces associated with non-negative operators on Banach spaces

Charles Batty, Chuang Chen

摘要:

受算子分数幂的各种表示的启发,我们发展了非负算子$A$的抽象Besov空间$B^{ s, A }_{ q, X }$的理论,它是在具有全范围指标$s \in \mathbb{R}$和$0 < q \leq \infty$的巴拿赫空间$X$上的.我们使用的方法是非负算子预解式的二进分割,类似于经典Besov空间构造中的Littlewood-Paley分解。特别地,利用算子分数幂的再生公式和Besov空间的显式拟范数估计,讨论了与算子相关的Besov空间的光滑性与其基础算子分数幂的有界性之间的联系.

英文摘要:

Motivated by a variety of representations of fractional powers of operators, we develop the theory of abstract Besov spaces $B^{ s, A }_{ q, X }$ for non-negative operators $A$ on Banach spaces $X$ with a full range of indices $s \in \mathbb{R}$ and $0 < q \leq \infty$. The approach we use is the dyadic decomposition of resolvents for non-negative operators, an analogue of the Littlewood-Paley decomposition in the construction of the classical Besov spaces. In particular, by using the reproducing formulas for fractional powers of operators and explicit quasi-norms estimates for Besov spaces we discuss the connections between the smoothness of Besov spaces associated with operators and the boundedness of fractional powers of the underlying operators.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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