Yu, Xiang Ming; Hu, Yingkang Approximation spaces for perfect spline approximation. (English) Zbl 1487.41010 East J. Approx. 13, No. 2, 153-161 (2007). MSC: 41A15 41A65 65D07 PDFBibTeX XMLCite \textit{X. M. Yu} and \textit{Y. Hu}, East J. Approx. 13, No. 2, 153--161 (2007; Zbl 1487.41010)
Hu, Y.-K.; Yu, X. M. Perfect spline approximation. (English) Zbl 1029.41004 J. Approximation Theory 121, No. 2, 229-243 (2003). Reviewer: Martin D.Buhmann (Giessen) MSC: 41A15 41A29 41A30 41A50 41A52 49M25 93C55 PDFBibTeX XMLCite \textit{Y. K. Hu} and \textit{X. M. Yu}, J. Approx. Theory 121, No. 2, 229--243 (2003; Zbl 1029.41004) Full Text: DOI
Hu, Yingkang; Yu, Xiang Ming Copositive polynomial approximation revisited. (English) Zbl 0986.41001 Anastassiou, George A. (ed.), Applied mathematics reviews. Volume 1. Singapore: World Scientific. 157-174 (2000). MSC: 41-02 PDFBibTeX XMLCite \textit{Y. Hu} and \textit{X. M. Yu}, in: Applied mathematics reviews. Volume 1. Singapore: World Scientific. 157--174 (2000; Zbl 0986.41001)
Hu, Yingkang; Kopotun, Kirill A.; Yu, Xiang Ming Modified adaptive algorithms. (English) Zbl 0982.65016 SIAM J. Numer. Anal. 38, No. 3, 1013-1033 (2000). Reviewer: Dan Barbosu (Baia Mare) MSC: 65D07 41A15 41A25 65D17 PDFBibTeX XMLCite \textit{Y. Hu} et al., SIAM J. Numer. Anal. 38, No. 3, 1013--1033 (2000; Zbl 0982.65016) Full Text: DOI
Hu, Y. K.; Kopotun, K. A.; Yu, X. M. On multivariate adaptive approximation. (English) Zbl 0955.41011 Constructive Approximation 16, No. 3, 449-474 (2000). Reviewer: L.Leindler (Szeged) MSC: 41A15 41A17 41A25 41A27 41A46 41A63 PDFBibTeX XMLCite \textit{Y. K. Hu} et al., Constr. Approx. 16, No. 3, 449--474 (2000; Zbl 0955.41011) Full Text: DOI
Hu, Y. K.; Kopotun, K. A.; Yu, X. M. Weak copositive and interwining approximation. (English) Zbl 0920.41006 J. Approximation Theory 96, No. 2, 213-236 (1999). Reviewer: D.Leviatan (Tel Aviv) MSC: 41A25 41A29 PDFBibTeX XMLCite \textit{Y. K. Hu} et al., J. Approx. Theory 96, No. 2, 213--236 (1999; Zbl 0920.41006)
Hu, Y. K.; Kopotun, K. A.; Yu, X. M. Constrained approximation in Sobolev spaces. (English) Zbl 0879.41006 Can. J. Math. 49, No. 1, 74-99 (1997). Reviewer: D.Leviatan (Tel Aviv) MSC: 41A29 41A10 41A15 41A25 PDFBibTeX XMLCite \textit{Y. K. Hu} et al., Can. J. Math. 49, No. 1, 74--99 (1997; Zbl 0879.41006) Full Text: DOI
Hu, Y. K.; Kopotun, K. A.; Yu, X. M. On positive and copositive polynomial and spline approximation in \(L_ p[-1,1],\quad 0<p<\infty\). (English) Zbl 0868.41014 J. Approximation Theory 86, No. 3, 320-334 (1996). Reviewer: D.Leviatan (Tel Aviv) MSC: 41A29 41A10 41A25 PDFBibTeX XMLCite \textit{Y. K. Hu} et al., J. Approx. Theory 86, No. 3, 320--334 (1996; Zbl 0868.41014) Full Text: DOI
Hu, Yingkang; Yu, Xiang Ming The degree of copositive approximation and a computer algorithm. (English) Zbl 0847.41016 SIAM J. Numer. Anal. 33, No. 1, 388-398 (1996). Reviewer: D.Leviatan (Tel Aviv) MSC: 41A29 41A10 41-04 41A15 41A17 41A25 PDFBibTeX XMLCite \textit{Y. Hu} and \textit{X. M. Yu}, SIAM J. Numer. Anal. 33, No. 1, 388--398 (1996; Zbl 0847.41016) Full Text: DOI Link
Hu, Yingkang; Yu, Xiang Ming Discrete modulus of smoothness of splines with equally spaced knots. (English) Zbl 0841.41007 SIAM J. Numer. Anal. 32, No. 5, 1428-1435 (1995). Reviewer: E.Deeba (Houston) MSC: 41A15 41A10 41A17 41A25 41A29 PDFBibTeX XMLCite \textit{Y. Hu} and \textit{X. M. Yu}, SIAM J. Numer. Anal. 32, No. 5, 1428--1435 (1995; Zbl 0841.41007) Full Text: DOI Link
Hu, Yingkang; Leviatan, Dany; Yu, Xiang Ming Copositive polynomial and spline approximation. (English) Zbl 0837.41007 J. Approximation Theory 80, No. 2, 204-218 (1995). Reviewer: G.D.Dikshit (Auckland) MSC: 41A10 41A15 41A25 41A17 PDFBibTeX XMLCite \textit{Y. Hu} et al., J. Approx. Theory 80, No. 2, 204--218 (1995; Zbl 0837.41007) Full Text: DOI
Hu, Yingkang; Leviatan, Dany; Yu, Xiang Ming Convex polynomial and spline approximation in \(C[-1,1]\). (English) Zbl 0799.41007 Constructive Approximation 10, No. 1, 31-64 (1994). MSC: 41A10 41A15 41A25 41A29 PDFBibTeX XMLCite \textit{Y. Hu} et al., Constr. Approx. 10, No. 1, 31--64 (1994; Zbl 0799.41007) Full Text: DOI
Hu, Yingkang; Leviatan, Dany; Yu, Xiang Ming Copositive polynomial approximation in C [0,1]. (English) Zbl 0770.41008 J. Anal. 1, 85-90 (1993). MSC: 41A10 PDFBibTeX XMLCite \textit{Y. Hu} et al., J. Anal. 1, 85--90 (1993; Zbl 0770.41008)