A note on truncations in fractional Sobolev spaces
classification
🧮 math.AP
keywords
fractionalmapstosobolevspacesmathbbnemytskiinoteoperators
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We study the Nemytskii operators $u\mapsto |u|$ and $u\mapsto u^{\pm}$ in fractional Sobolev spaces $H^s(\mathbb R^n)$, $s>1$.
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