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arXiv 1111.5700math.CA
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Fourier-Bessel背景下的锐热估计和从属核估计

On sharp heat and subordinated kernel estimates in the Fourier-Bessel setting

Adam Nowak, Luz Roncal

摘要:

我们证明了定性尖锐的热核边界设置的Fourier-Bessel展开时,相关的类型参数$ν$是半整数。此外,仍然是半整数$ν$,我们也得到了尖锐的估计,所有核从属于热核。对一般$ν> -1$的类似估计进行了说明。讨论了有关热半群极大算子的一些结果。

英文摘要:

We prove qualitatively sharp heat kernel bounds in the setting of Fourier-Bessel expansions when the associated type parameter $ν$ is half-integer. Moreover, still for half-integer $ν$, we also obtain sharp estimates of all kernels subordinated to the heat kernel. Analogous estimates for general $ν> -1$ are conjectured. Some consequences concerning the related heat semigroup maximal operator are discussed.

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