Extension and embedding theorems for Campanato spaces on C0,γ$C^{0,\gamma }$ domains

Damiano Greco and Pier Domenico Lamberti

Mathematische Nachrichten, 2024, vol. 297, issue 6, 2047-2066

Abstract: We consider Campanato spaces with exponents λ,p$\lambda, p$ on domains of class C0,γ$C^{0,\gamma }$ in the N‐dimensional Euclidean space endowed with a natural anisotropic metric depending on γ$\gamma$. We discuss several results including the appropriate Campanato's embedding theorem and we prove that functions of those spaces can be extended to the whole of the Euclidean space without deterioration of the exponents λ,p$\lambda, p$.

Date: 2024
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https://doi.org/10.1002/mana.202300092

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