Optimal $C^\infty$-approximation of functions with exponentially or sub-exponentially integrable derivative

DOI10.1007/s00526-022-02346-wzbMath1510.46015arXiv2203.03306MaRDI QIDQ6393002

Sebastiano Nicolussi Golo, Francesco Serra Cassano, Luigi Ambrosio

Publication date: 7 March 2022

Mathematics Subject Classification ID

Spaces of measurable functions ((L^p)-spaces, Orlicz spaces, Köthe function spaces, Lorentz spaces, rearrangement invariant spaces, ideal spaces, etc.) (46E30) Sobolev spaces and other spaces of ``smooth functions, embedding theorems, trace theorems (46E35) Theoretical approximation in context of PDEs (35A35)

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