Abstract
We prove an inequality between the decreasing rearrangement of a function u and the decreasing rearrangement of the length of the gradient of u.
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Talenti, G. (1992). An inequality between u* and |grad u|*. In: Walter, W. (eds) General Inequalities 6. International Series of Numerical Mathematics / Internationale Schriftenreihe zur Numerischen Mathematik / Série Internationale d’Analyse Numérique, vol 103. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-7565-3_14
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DOI: https://doi.org/10.1007/978-3-0348-7565-3_14
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