Characterization of Triebel–Lizorkin type spaces with variable exponents via maximal functions, local means and non‐smooth atomic decompositions

Helena F. Gonçalves and Susana D. Moura

Mathematische Nachrichten, 2018, vol. 291, issue 13, 2024-2044

Abstract: In this paper we study the maximal function and local means characterizations and the non‐smooth atomic decomposition of the Triebel–Lizorkin type spaces with variable exponents Fp(·),q(·)s(·),ϕ(Rn). These spaces were recently introduced by Yang et al. and cover the Triebel–Lizorkin spaces with variable exponents Fp(·),q(·)s(·)(Rn) as well as the classical Triebel–Lizorkin spaces Fp,qs(Rn), even the case when p=∞. Moreover, covered by this scale are also the Triebel–Lizorkin‐type spaces Fp,qs,τ(Rn) with constant exponents which, in turn cover the Triebel–Lizorkin–Morrey spaces. As an application we obtain a pointwise multiplier assertion for those spaces.

Date: 2018
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