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This lecture will deal with the classical and Fourier approach to functions with generalized derivatives, in particular to Sobolev and Besov spaces. At the same time the exposition of the basic techniques used here represents an introduction to the interpolation theory, the theory and
applications of the maximal function, Riesz and Bessel potentials, Fourier
multipliers and theorems of Littlewood-Paley type. The goal is a theory in $R^n$ and its subsequent transfer to domains with help of extension
theorems.
Last update: T_KMA (10.05.2001)
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This lecture will deal with the classical and Fourier approach to functions with generalized derivatives, in particular to Sobolev and Besov spaces. At the same time the exposition of the basic techniques used here represents an introduction to the interpolation theory, the theory and applications of the maximal function, Riesz and Bessel potentials, Fourier multipliers and theorems of Littlewood-Paley type. The goal is a theory in $R^n$ and its subsequent transfer to domains with help of extension theorems. Last update: G_M (02.06.2005)
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