Weighted Fourier Inequalities in Lebesgue and Lorentz Spacesстатья
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Дата последнего поиска статьи во внешних источниках: 16 декабря 2020 г.
Аннотация:In this paper, we obtain sufficient conditions for the weighted Fourier-type transforms to be bounded in Lebesgue and Lorentz spaces. Two types of results are discussed. First, we review the method based on rearrangement inequalities and the corresponding Hardy's inequalities. Second, we present Hormander-type conditions on weights so that Fourier-type integral operators are bounded in Lebesgue and Lorentz spaces. Both restricted weak- and strong-type results are obtained. In the case of regular weights necessary and sufficient conditions are given.