Abstract
By means of appropriate sparse bounds, we deduce compactness on weighted \(L^p(w)\) spaces, \(1<p<\infty\), for all Calderón–Zygmund operators having compact extensions on \(L^2({\mathbb {R}}^n)\). Similar methods lead to new results on boundedness and compactness of Haar multipliers on weighted spaces. In particular, we prove weighted bounds for weights in a class strictly larger than the typical \(A_p\) class.
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Villarroya has been partially supported by Spanish Ministerio de Ciencia, Innovación y Universidades, project Grant PGC2018-095366-B-I00.
B. D. Wick’s research is supported in part by National Science Foundation Grant DMS #1560955 and #1800057, and by Australian Research Council grant DP 190100970.
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Stockdale, C.B., Villarroya, P. & Wick, B.D. Sparse domination results for compactness on weighted spaces. Collect. Math. 73, 535–563 (2022). https://doi.org/10.1007/s13348-021-00333-6
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DOI: https://doi.org/10.1007/s13348-021-00333-6