Melkman, Avraham A. On an Hermite-Birkhoff problem of Passow. (English) Zbl 0546.41002 J. Approximation Theory 33, 81-84 (1981). Reviewer: Y.G.Shi MSC: 41A05 41A55 PDFBibTeX XMLCite \textit{A. A. Melkman}, J. Approx. Theory 33, 81--84 (1981; Zbl 0546.41002) Full Text: DOI
Deutsch, Frank; Mach, Jaroslav; Saatkamp, Klaus Approximation by finite rank operators. (English) Zbl 0521.41017 J. Approximation Theory 33, 199-213 (1981). MSC: 41A36 41A65 PDFBibTeX XMLCite \textit{F. Deutsch} et al., J. Approx. Theory 33, 199--213 (1981; Zbl 0521.41017) Full Text: DOI
Ruscheweyh, St.; Wirths, K.-J. On a property of singular integrals with even positive kernels. (English) Zbl 0518.41020 J. Approximation Theory 33, 334-339 (1981). MSC: 41A36 42B20 PDFBibTeX XMLCite \textit{St. Ruscheweyh} and \textit{K. J. Wirths}, J. Approx. Theory 33, 334--339 (1981; Zbl 0518.41020) Full Text: DOI
Rice, John; Rosenblatt, Murray Integrated mean squared error of a smoothing spline. (English) Zbl 0516.41006 J. Approximation Theory 33, 353-369 (1981). MSC: 41A15 PDFBibTeX XMLCite \textit{J. Rice} and \textit{M. Rosenblatt}, J. Approx. Theory 33, 353--369 (1981; Zbl 0516.41006) Full Text: DOI
Welker, Gunter Approximation mit einer erweiterten Klasse von Exponentialsummen. (German) Zbl 0508.42006 J. Approximation Theory 33, 281-287 (1981). MSC: 42A10 41A10 PDFBibTeX XMLCite \textit{G. Welker}, J. Approx. Theory 33, 281--287 (1981; Zbl 0508.42006) Full Text: DOI
Akhlaghi, M.; Wolfe, Jerry M. Functions with many best \(L_2\)-approximations. (English) Zbl 0506.41026 J. Approximation Theory 33, 111-118 (1981). MSC: 41A50 41A52 PDFBibTeX XMLCite \textit{M. Akhlaghi} and \textit{J. M. Wolfe}, J. Approx. Theory 33, 111--118 (1981; Zbl 0506.41026) Full Text: DOI
Kroo, Andras Best \(L_1\)-approximation on finite point sets: rate of convergence. (English) Zbl 0505.41016 J. Approximation Theory 33, 340-352 (1981). MSC: 41A50 41A29 PDFBibTeX XMLCite \textit{A. Kroo}, J. Approx. Theory 33, 340--352 (1981; Zbl 0505.41016) Full Text: DOI
Kammler, David W. A sufficient condition for the rapid convergence of differential approximation. (English) Zbl 0503.41015 J. Approximation Theory 33, 264-267 (1981). MSC: 41A30 65D15 11L03 PDFBibTeX XMLCite \textit{D. W. Kammler}, J. Approx. Theory 33, 264--267 (1981; Zbl 0503.41015) Full Text: DOI
Pinkus, A. Best approximations by smooth functions. (English) Zbl 0498.41010 J. Approximation Theory 33, 147-178 (1981). MSC: 41A30 41A46 PDFBibTeX XMLCite \textit{A. Pinkus}, J. Approx. Theory 33, 147--178 (1981; Zbl 0498.41010) Full Text: DOI
Alsina, James The Peano curve of Schoenberg is nowhere differentiable. (English) Zbl 0498.26004 J. Approximation Theory 33, 28-42 (1981). MSC: 26A27 PDFBibTeX XMLCite \textit{J. Alsina}, J. Approx. Theory 33, 28--42 (1981; Zbl 0498.26004) Full Text: DOI
Zwick, D. Properties of functions generalized convex with respect to a WT-system. (English) Zbl 0492.41041 J. Approximation Theory 33, 308-317 (1981). MSC: 41A50 41A65 PDFBibTeX XMLCite \textit{D. Zwick}, J. Approx. Theory 33, 308--317 (1981; Zbl 0492.41041) Full Text: DOI
Oswald, P. \(L^ p-\)approximation durch Reihen nach dem Haar-Orthogonalsystem und dem Faber-Schauder-System. (German) Zbl 0491.41021 J. Approximation Theory 33, 1-27 (1981). MSC: 41A30 42C10 42C05 41A65 28B15 PDFBibTeX XMLCite \textit{P. Oswald}, J. Approx. Theory 33, 1--27 (1981; Zbl 0491.41021) Full Text: DOI
Hoellig, K. \(L_\infty\)-boundedness of \(L_ 2-\)projections on splines for a geometric mesh. (English) Zbl 0486.41008 J. Approximation Theory 33, 318-333 (1981). MSC: 41A15 41A65 PDFBibTeX XMLCite \textit{K. Hoellig}, J. Approx. Theory 33, 318--333 (1981; Zbl 0486.41008) Full Text: DOI
Mountain, J. K. The Lax equivalence theorem for linear inhomogeneous equations in \(L^ 2\) spaces. (English) Zbl 0485.65038 J. Approximation Theory 33, 126-130 (1981). MSC: 65J10 35G10 35K25 34G10 65L05 49J20 65M12 PDFBibTeX XMLCite \textit{J. K. Mountain}, J. Approx. Theory 33, 126--130 (1981; Zbl 0485.65038) Full Text: DOI
Kelley, C. T. A note on the approximation of functions of several variables by sums of functions of one variable. (English) Zbl 0485.41020 J. Approximation Theory 33, 179-189 (1981). MSC: 41A30 65D15 41A45 PDFBibTeX XMLCite \textit{C. T. Kelley}, J. Approx. Theory 33, 179--189 (1981; Zbl 0485.41020) Full Text: DOI
Henry, Myron S.; Schmidt, Darrell; Swetits, John J. Uniform strong unicity for rational approximation. (English) Zbl 0485.41016 J. Approximation Theory 33, 131-146 (1981). MSC: 41A20 41A50 PDFBibTeX XMLCite \textit{M. S. Henry} et al., J. Approx. Theory 33, 131--146 (1981; Zbl 0485.41016) Full Text: DOI
Greville, T. N. E. Moving-weighted-average smoothing extended to the extremities of the data. III. Stability and optimal properties. (English) Zbl 0484.65010 J. Approximation Theory 33, 43-58 (1981). MSC: 65D10 41A50 PDFBibTeX XMLCite \textit{T. N. E. Greville}, J. Approx. Theory 33, 43--58 (1981; Zbl 0484.65010) Full Text: DOI
Hettich, R.; Jongen, H. Th. On the local continuity of the Chebyshev operator. (English) Zbl 0484.41036 J. Approximation Theory 33, 296-307 (1981). MSC: 41A50 41A46 PDFBibTeX XMLCite \textit{R. Hettich} and \textit{H. Th. Jongen}, J. Approx. Theory 33, 296--307 (1981; Zbl 0484.41036) Full Text: DOI
Hoellig, K. A remark on multivariate B-splines. (English) Zbl 0484.41014 J. Approximation Theory 33, 119-125 (1981). MSC: 41A15 41A63 PDFBibTeX XMLCite \textit{K. Hoellig}, J. Approx. Theory 33, 119--125 (1981; Zbl 0484.41014) Full Text: DOI
Clausing, A. On polynomial interpolation with mixed conditions. (English) Zbl 0484.41006 J. Approximation Theory 33, 288-295 (1981). MSC: 41A05 41A10 26C10 PDFBibTeX XMLCite \textit{A. Clausing}, J. Approx. Theory 33, 288--295 (1981; Zbl 0484.41006) Full Text: DOI
Bellen, Alfredo A note of mean convergence of Lagrange interpolation. (English) Zbl 0484.41003 J. Approximation Theory 33, 85-95 (1981). MSC: 41A05 41A10 PDFBibTeX XMLCite \textit{A. Bellen}, J. Approx. Theory 33, 85--95 (1981; Zbl 0484.41003) Full Text: DOI
Landers, D.; Rogge, L. Natural choice of \(L_ 1-\)approximants. (English) Zbl 0483.41034 J. Approximation Theory 33, 268-280 (1981). MSC: 41A99 41A50 PDFBibTeX XMLCite \textit{D. Landers} and \textit{L. Rogge}, J. Approx. Theory 33, 268--280 (1981; Zbl 0483.41034) Full Text: DOI
Jia, Rong-Qing On local linear functionals for L-splines. (English) Zbl 0483.41009 J. Approximation Theory 33, 96-110 (1981). MSC: 41A15 PDFBibTeX XMLCite \textit{R.-Q. Jia}, J. Approx. Theory 33, 96--110 (1981; Zbl 0483.41009) Full Text: DOI
Goodman, T. N. T.; Lee, S. L. Spline approximation operators of Bernstein-Schoenberg type in one and two variables. (English) Zbl 0482.41010 J. Approximation Theory 33, 248-263 (1981). MSC: 41A15 41A63 41A10 41A36 PDFBibTeX XMLCite \textit{T. N. T. Goodman} and \textit{S. L. Lee}, J. Approx. Theory 33, 248--263 (1981; Zbl 0482.41010) Full Text: DOI
Lehnhoff, Heinz-Gerd Local Nikolskii constants for a special class of Baskakov operators. (English) Zbl 0479.41017 J. Approximation Theory 33, 236-247 (1981). MSC: 41A36 41A25 41A44 41A60 PDFBibTeX XMLCite \textit{H.-G. Lehnhoff}, J. Approx. Theory 33, 236--247 (1981; Zbl 0479.41017) Full Text: DOI
Bartelt, Martin W.; Schmidt, Darrell On Poreda’s problem on the strong unicity constants. (English) Zbl 0478.41024 J. Approximation Theory 33, 69-79 (1981). MSC: 41A52 41A10 PDFBibTeX XMLCite \textit{M. W. Bartelt} and \textit{D. Schmidt}, J. Approx. Theory 33, 69--79 (1981; Zbl 0478.41024) Full Text: DOI
Lehnhoff, Heinz-Gerd Local Nikolskii constants for positive linear operators. (English) Zbl 0478.41014 J. Approximation Theory 33, 224-235 (1981). MSC: 41A25 41A36 41A44 41A60 PDFBibTeX XMLCite \textit{H.-G. Lehnhoff}, J. Approx. Theory 33, 224--235 (1981; Zbl 0478.41014) Full Text: DOI
Reemtsen, R. Characterizations of local best Chebyshev approximations. (English) Zbl 0477.41023 J. Approximation Theory 33, 190-198 (1981). MSC: 41A50 41A46 PDFBibTeX XMLCite \textit{R. Reemtsen}, J. Approx. Theory 33, 190--198 (1981; Zbl 0477.41023) Full Text: DOI
Mhaskar, H. N. Weighted polynomial approximation of entire functions. II. (English) Zbl 0475.41003 J. Approximation Theory 33, 59-68 (1981). MSC: 41A10 30E10 PDFBibTeX XMLCite \textit{H. N. Mhaskar}, J. Approx. Theory 33, 59--68 (1981; Zbl 0475.41003) Full Text: DOI
Delvos, Franz-Jürgen; Schempp, Walter Optimal approximation and its method of least squares. (English) Zbl 0445.41008 J. Approximation Theory 33, 214-223 (1981). MSC: 41A50 65D15 PDFBibTeX XMLCite \textit{F.-J. Delvos} and \textit{W. Schempp}, J. Approx. Theory 33, 214--223 (1981; Zbl 0445.41008) Full Text: DOI