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The Boas problem on Hankel transforms. (English) Zbl 1428.42007

Summary: Norm equivalences between a function and its Hankel transform are studied both in the context of weighted Lebesgue spaces with power weights, and in Lorentz spaces. Boas-type results involving real-valued general monotone functions are obtained. Corresponding results for the Fourier transform are also given.

MSC:

42A38 Fourier and Fourier-Stieltjes transforms and other transforms of Fourier type
42A16 Fourier coefficients, Fourier series of functions with special properties, special Fourier series
26D15 Inequalities for sums, series and integrals
26A48 Monotonic functions, generalizations

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