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arXiv 1903.01705math.AP
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与算子相关的Hardy空间的框架分解和径向极大半群特征

Frame decomposition and radial maximal semigroup characterization of Hardy spaces associated to operators

Xuan Thinh Duong, Ji Li, Liang Song, Lixin Yan

摘要:

设$L$是核满足Gaussian上界和Hölder连续的解析半群的生成元.还假设$L$在$L^2(\mathbb{R}^n)$上有一个有界全纯谓词演算。本文对属于与$L$相关联的Hardy空间$H_{L}^{1}(\mathbb{R}^n)$的函数和Lebesgue空间$L^p$,$1<p<\infty$中的函数构造了一个框架分解.然后,我们证明了相应的$H_{L}^{1}(\mathbb{R}^n)$ -范数(分别为.函数$f$在帧系数方面的范数($L^p(\mathbb{R}^n)$ -范数)等价于$H_{L}^{1}(\mathbb{R}^n)$ -范数(相应地,$f$的$L^p(\mathbb{R}^n)$ -范数)。作为框架分解的一个应用,在$L$的热核梯度满足高斯上界的条件下,建立了Hardy空间$H_{L}^{1}(\mathbb{R}^n)$的径向极大半群刻画.

英文摘要:

Let $L$ be the generator of an analytic semigroup whose kernels satisfy Gaussian upper bounds and Hölder's continuity. Also assume that $L$ has a bounded holomorphic functional calculus on $L^2(\mathbb{R}^n)$. In this paper, we construct a frame decomposition for the functions belonging to the Hardy space $H_{L}^{1}(\mathbb{R}^n)$ associated to $L$, and for functions in the Lebesgue spaces $L^p$, $1<p<\infty$. We then show that the corresponding $H_{L}^{1}(\mathbb{R}^n)$-norm (resp. $L^p(\mathbb{R}^n)$-norm) of a function $f$ in terms of the frame coefficients is equivalent to the $H_{L}^{1}(\mathbb{R}^n)$-norm (resp. $L^p(\mathbb{R}^n)$-norm) of $f$. As an application of the frame decomposition, we establish the radial maximal semigroup characterization of the Hardy space $H_{L}^{1}(\mathbb{R}^n)$ under the extra condition of Gaussian upper bounds on the gradient of the heat kernels of $L$.

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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