Abstract
Let 0 < p ≤ 1 and w in the Muckenhoupt class A1. Recently, by using the weighted atomic decomposition and molecular characterization, Lee, Lin and Yang[11] established that the Riesz transforms Rj, j = 1,2, …,n, are bounded on Hpw(Rn). In this note we extend this to the general case of weight w in the Muckenhoupt class A∞ through molecular characterization. One difficulty, which has not been taken care in [11], consists in passing from atoms to all functions in Hpw(Rn). Furthermore, the Hpw-boundedness of θ-Calderón-Zygmund operators are also given through molecular characterization and atomic decomposition.
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Ky, L.D. A note on Hpw-boundedness of Riesz transforms and θ -Calderón-Zygmund operators through molecular characterization. Anal. Theory Appl. 27, 251–264 (2011). https://doi.org/10.1007/s10496-011-0251-z
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DOI: https://doi.org/10.1007/s10496-011-0251-z