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Keywords:
weak Lebesgue space; Triebel-Lizorkin space; equivalent norm; maximal function; atom
weak Lebesgue space; Triebel-Lizorkin space; equivalent norm; maximal function; atom
Summary:
Recently, the weak Triebel-Lizorkin space was introduced by Grafakos and He, which includes the standard Triebel-Lizorkin space as a subset. The latter has a wide applications in aspects of analysis. In this paper, the authors firstly give equivalent quasi-norms of weak Triebel-Lizorkin spaces in terms of Peetre's maximal functions. As an application of those equivalent quasi-norms, an atomic decomposition of weak Triebel-Lizorkin spaces is given.
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