Abstract
Usually, the condition that T is bounded on L2(ℝn) is assumed to prove the boundedness of an operator T on a Hardy space. With this assumption, one only needs to prove the uniformly boundness of T on atoms, since T(f)= ∑i λiT(ai), provided that f = ∑i λiai in L2 (ℝn), where ai is an L2 atom of this Hardy space. So far, the L2 atomic decomposition of local Hardy spaces hp(ℝn), 0 > p ≤ 1, hasn’t been established. In this paper, we will solve this problem, and also show that hp(ℝn) can also be characterized by discrete Littlewood-Paley functions.
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Supported by NNSF of China (Grant Nos. 11501308 and 11771223)
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Ding, W., Jiang, L.X. & Zhu, Y.P. Discrete Littlewood-Paley-Stein Characterization and L2 Atomic Decomposition of Local Hardy Spaces. Acta. Math. Sin.-English Ser. 35, 1681–1695 (2019). https://doi.org/10.1007/s10114-019-8532-0
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DOI: https://doi.org/10.1007/s10114-019-8532-0