On the spaces \(C^ k(\mathbb{R})\cap L^ p(\mathbb{R})\)
We show that the Fréchet-Sobolev spaces \(C(\mathbb{R})\cap L^p(\mathbb{R})\) and \(C^k(\mathbb{R})\cap L^p(\mathbb{R})\) are not isomorphic for \(p\neq 2\) and \(k\in\mathbb{N}\).
scientific article; zbMATH DE number 1026258