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Boundedness of Iterated Spherical Average on α-Modulation Spaces

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Abstract

For the iteration of spherical average (A1)N and the Laplace operator Δ, we consider the boundedness of the operator Δ(A1)N on the α-modulation spaces \(M_{p,q}^{s,\alpha }\). The authors obtain some sufficient and necessary conditions to ensure the boundedness on the α-modulation spaces. The main theorems significantly improve some known results.

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Correspondence to Xiaomei Wu.

Additional information

This work was supported by the Science Foundation of Zhejiang Education Department (No. Y201738640) and the National Natural Science Foundation of China (Nos. 11801518, 11671362).

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Huang, Q., Wu, X. Boundedness of Iterated Spherical Average on α-Modulation Spaces. Chin. Ann. Math. Ser. B 42, 721–736 (2021). https://doi.org/10.1007/s11401-021-0287-0

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  • DOI: https://doi.org/10.1007/s11401-021-0287-0

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