Abstract

We study Sobolev, Besov and Triebel–Lizorkin spaces on quantum tori. These spaces share many properties with their classical counterparts. The results announced include: Besov and Sobolev embedding theorems; Littlewood–Paley-type characterizations of Besov and Triebel–Lizorkin spaces; an explicit description of the K-functional of (Lp(Tθd),Wpk(Tθd)); descriptions of completely bounded Fourier multipliers on these spaces.

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