
We show that if the radial maximal function of a distribution \(f\in {\mathcal D}(R^ n)'\) belongs to \(L^ p(R^ n)\), then f belongs to \(H^ p(R^ n)\). This gives an affirmative answer to the question posed by Aleksandov and Havin.
radial maximal function of a distribution, Maximal functions, Littlewood-Paley theory, Topological linear spaces of test functions, distributions and ultradistributions, 42B25, 46F10
radial maximal function of a distribution, Maximal functions, Littlewood-Paley theory, Topological linear spaces of test functions, distributions and ultradistributions, 42B25, 46F10
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