Аннотация:
We study characterizations by differences of the Besov-type spaces $B_{p,q}^{s,\tau}(\mathbb{R}^d)$. Our focus is on necessary and sufficient conditions on s for the validity of those characterizations.
Ключевые слова и фразы:Nikol'skii–Besov spaces, Morrey spaces, Besov-type spaces, characterizations by differences.
Полный текст:
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