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Function Spaces via Fractional Poisson Kernel on Carnot Groups and Applications
Published 13 May 2020 in math.AP and math.FA | (2005.06363v1)
Abstract: We provide a new characterization of homogeneous Besov and Sobolev spaces in Carnot groups using the fractional heat kernel and Poisson kernel. We apply our results to study commutators involving fractional powers of the sub-Laplacian.
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