Abstract
The characterization of isotropic Besov spaces B ap,q (Id) for a>d/p in terms of progressive differences of a function on dyadic points is obtained. Moreover, for\(\underline a = (a_1 ,...a_d )\) with ai>1/p, an analogous characterization of anisotropic Besov spaces\(B_{p,q}^{\underline a } (I^d )\) is presented.
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This work was supported by KBN grant 2 P301 019 06.
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Kamont, A. A discrete characterization of Besov spaces. Approx. Theory & its Appl. 13, 63–77 (1997). https://doi.org/10.1007/BF02836261
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DOI: https://doi.org/10.1007/BF02836261