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On the equivalence of the K-functional and the modulus of continuity on the periodic variable exponent Morrey spaces
Periodica Mathematica Hungarica ( IF 0.8 ) Pub Date : 2019-06-28 , DOI: 10.1007/s10998-019-00293-2
Arash Ghorbanalizadeh , Reza Roohi Seraji

In this work, we show that the modulus of smoothness in the periodic variable exponents Morrey spaces and the K-functional with respect to the periodic variable exponents Morrey spaces—the periodic variable exponents Sobolev–Morrey spaces are equivalent. As an application we use this characterization for obtaining an analogue of Whitney’s theorem in the spaces $${{\mathcal {M}}}_{p(\cdot ),\lambda (\cdot )}(I_0)$$ .

中文翻译:

关于周期变量指数莫雷空间上的 K 泛函和连续性模的等价性

在这项工作中,我们证明了周期变量指数 Morrey 空间中的平滑模量和关于周期变量指数 Morrey 空间的 K 泛函——周期变量指数 Sobolev-Morrey 空间是等效的。作为一个应用,我们使用这个表征来获得空间 $${{\mathcal {M}}}_{p(\cdot ),\lambda (\cdot )}(I_0)$$ 中惠特尼定理的类似物。
更新日期:2019-06-28
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