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刊物主题:Mathematics Fourier Analysis Abstract Harmonic Analysis Approximations and Expansions Partial Differential Equations Applications of Mathematics Signal,Image and Speech Processing
出版者:Birkh盲user Boston
ISSN:1531-5851
文摘
We establish refined Sobolev inequalities between the Lorentz spaces and homogeneous Besov spaces. The sharpness of these inequalities is illustrated on several examples, in particular based on non-uniformly oscillating functions known as chirps. These results are also used to derive refined Hardy inequalities.