Byrenheid, G.; Ullrich, T. Optimal sampling recovery of mixed order Sobolev embeddings via discrete {L}ittlewood–{P}aley type characterizations. (English) Zbl 1389.42001 Anal. Math. 43, No. 2, 133-191 (2017). Reviewer: Zoltán Finta (Cluj-Napoca) MSC: 42A10 42A15 41A63 41A17 41A25 PDFBibTeX XMLCite \textit{G. Byrenheid} and \textit{T. Ullrich}, Anal. Math. 43, No. 2, 133--191 (2017; Zbl 1389.42001) Full Text: DOI arXiv
Luo, Junbo; Liu, Yonping Average width and optimal recovery of the anisotropic classes \(W^{r}H^{\alpha}({\mathbb R}^{d})\) in the metric \(C^{k}({\mathbb R}^{d})\). (English) Zbl 0941.41012 Anal. Math. 24, No. 4, 265-273 (1998). Reviewer: Costica Mustata (Cluj-Napoca) MSC: 41A46 41A65 46E15 PDFBibTeX XMLCite \textit{J. Luo} and \textit{Y. Liu}, Anal. Math. 24, No. 4, 265--273 (1998; Zbl 0941.41012) Full Text: DOI