Sirvent, Maritza; Sorokina, Tatyana; Villamizar, Nelly; Yuan, Beihui Multivariate polynomial splines on generalized oranges. (English) Zbl 07818440 J. Approx. Theory 299, Article ID 106016, 14 p. (2024). MSC: 41-XX 42-XX 41A15 13D99 65D07 PDFBibTeX XMLCite \textit{M. Sirvent} et al., J. Approx. Theory 299, Article ID 106016, 14 p. (2024; Zbl 07818440) Full Text: DOI arXiv
Dzyubenko, German; Kopotun, Kirill A. Onesided, intertwining, positive and copositive polynomial approximation with interpolatory constraints. (English) Zbl 07818437 J. Approx. Theory 299, Article ID 106012, 42 p. (2024). MSC: 41-XX 42-XX 41A25 41A10 41A29 41A05 41A15 PDFBibTeX XMLCite \textit{G. Dzyubenko} and \textit{K. A. Kopotun}, J. Approx. Theory 299, Article ID 106012, 42 p. (2024; Zbl 07818437) Full Text: DOI arXiv
Campiti, Michele Onesided Korovkin approximation. (English) Zbl 07806807 J. Approx. Theory 298, Article ID 106011, 16 p. (2024). MSC: 41A65 41A36 41A25 41A63 PDFBibTeX XMLCite \textit{M. Campiti}, J. Approx. Theory 298, Article ID 106011, 16 p. (2024; Zbl 07806807) Full Text: DOI
Alimov, A. R.; Tsar’kov, I. G. Chebyshev unions of planes, and their approximative and geometric properties. (English) Zbl 07806805 J. Approx. Theory 298, Article ID 106009, 12 p. (2024). MSC: 46E15 46E30 41A65 PDFBibTeX XMLCite \textit{A. R. Alimov} and \textit{I. G. Tsar'kov}, J. Approx. Theory 298, Article ID 106009, 12 p. (2024; Zbl 07806805) Full Text: DOI
Albiac, Fernando; Ansorena, José L.; Blasco, Óscar; Chu, Hùng Vi\d{ê}t; Oikhberg, Timur Counterexamples in isometric theory of symmetric and greedy bases. (English) Zbl 07797676 J. Approx. Theory 297, Article ID 105970, 20 p. (2024). Reviewer: T.S.S.R.K. Rao (Bangalore) MSC: 41A65 46B15 46B45 PDFBibTeX XMLCite \textit{F. Albiac} et al., J. Approx. Theory 297, Article ID 105970, 20 p. (2024; Zbl 07797676) Full Text: DOI arXiv
Nielsen, Morten Stable decomposition of homogeneous mixed-norm Triebel-Lizorkin spaces. (English) Zbl 07747924 J. Approx. Theory 295, Article ID 105958, 28 p. (2023). MSC: 41-XX 42-XX 42B35 42C15 42C40 41A17 41A65 PDFBibTeX XMLCite \textit{M. Nielsen}, J. Approx. Theory 295, Article ID 105958, 28 p. (2023; Zbl 07747924) Full Text: DOI arXiv
Grelier, Guillaume; San Martín, Jaime Proximinality and uniformly approximable sets in \(L^p\). (English) Zbl 07734910 J. Approx. Theory 294, Article ID 105945, 40 p. (2023). MSC: 41A50 26A42 28Axx 41A30 41A52 46E30 PDFBibTeX XMLCite \textit{G. Grelier} and \textit{J. San Martín}, J. Approx. Theory 294, Article ID 105945, 40 p. (2023; Zbl 07734910) Full Text: DOI arXiv
Kolomoitsev, Yurii; Lomako, Tetiana Sharp \(L_p\)-error estimates for sampling operators. (English) Zbl 07734907 J. Approx. Theory 294, Article ID 105941, 27 p. (2023). MSC: 41A05 41A10 41A25 41A27 42A15 PDFBibTeX XMLCite \textit{Y. Kolomoitsev} and \textit{T. Lomako}, J. Approx. Theory 294, Article ID 105941, 27 p. (2023; Zbl 07734907) Full Text: DOI arXiv
Li, Jiansong; Wang, Heping; Wang, Kai Weighted \(L_p\) Markov factors with doubling weights on the ball. (English) Zbl 07734905 J. Approx. Theory 294, Article ID 105939, 18 p. (2023). Reviewer: Anjali (Delhi) MSC: 41A17 26D05 41A44 42A05 PDFBibTeX XMLCite \textit{J. Li} et al., J. Approx. Theory 294, Article ID 105939, 18 p. (2023; Zbl 07734905) Full Text: DOI arXiv
Borodachov, Sergiy Absolute minima of potentials of certain regular spherical configurations. (English) Zbl 07734903 J. Approx. Theory 294, Article ID 105930, 16 p. (2023). Reviewer: Peter Massopust (München) MSC: 41A05 05B30 31B99 33C45 33D45 PDFBibTeX XMLCite \textit{S. Borodachov}, J. Approx. Theory 294, Article ID 105930, 16 p. (2023; Zbl 07734903) Full Text: DOI arXiv
Floater, Michael S. On a conjecture concerning interpolation by bivariate Bernstein polynomials. (English) Zbl 1528.65008 J. Approx. Theory 293, Article ID 105920, 14 p. (2023). MSC: 65D05 41A05 41A63 65F40 65D07 PDFBibTeX XMLCite \textit{M. S. Floater}, J. Approx. Theory 293, Article ID 105920, 14 p. (2023; Zbl 1528.65008) Full Text: DOI
Doliwa, Adam; Siemaszko, Artur Hermite-Padé approximation and integrability. (English) Zbl 1519.41005 J. Approx. Theory 292, Article ID 105910, 23 p. (2023). Reviewer: Adhemar Bultheel (Leuven) MSC: 41A21 37N30 37K20 37K60 42C05 51A20 65Q30 PDFBibTeX XMLCite \textit{A. Doliwa} and \textit{A. Siemaszko}, J. Approx. Theory 292, Article ID 105910, 23 p. (2023; Zbl 1519.41005) Full Text: DOI arXiv
Feichtinger, Hans G.; Gumber, Anupam Approximation by linear combinations of translates in invariant Banach spaces of tempered distributions via Tauberian conditions. (English) Zbl 1526.43002 J. Approx. Theory 292, Article ID 105908, 18 p. (2023). MSC: 43A15 43A10 41A65 46F05 46B50 43A25 46H25 46A40 40E05 PDFBibTeX XMLCite \textit{H. G. Feichtinger} and \textit{A. Gumber}, J. Approx. Theory 292, Article ID 105908, 18 p. (2023; Zbl 1526.43002) Full Text: DOI
Bello, Glenier; Bello-Hernández, Manuel Mean convergence of Lagrange interpolation. (English) Zbl 1519.41001 J. Approx. Theory 291, Article ID 105912, 7 p. (2023). Reviewer: Vitaliy Volchkov (Donetsk) MSC: 41A05 30A10 41A10 PDFBibTeX XMLCite \textit{G. Bello} and \textit{M. Bello-Hernández}, J. Approx. Theory 291, Article ID 105912, 7 p. (2023; Zbl 1519.41001) Full Text: DOI arXiv
Kuijlaars, Arno B. J. Extremal polynomials on the \(n\)-grid. (English) Zbl 1510.41003 J. Approx. Theory 288, Article ID 105875, 15 p. (2023). Reviewer: Martin D. Buhmann (Gießen) MSC: 41A20 65D05 65D15 PDFBibTeX XMLCite \textit{A. B. J. Kuijlaars}, J. Approx. Theory 288, Article ID 105875, 15 p. (2023; Zbl 1510.41003) Full Text: DOI arXiv
Totik, Vilmos The Lebesgue constants for Leja points are subexponential. (English) Zbl 07653565 J. Approx. Theory 287, Article ID 105863, 15 p. (2023). MSC: 41-XX 42-XX 41A05 41A10 PDFBibTeX XMLCite \textit{V. Totik}, J. Approx. Theory 287, Article ID 105863, 15 p. (2023; Zbl 07653565) Full Text: DOI
Hielscher, Ralf; Lippert, Laura Approximating the derivative of manifold-valued functions. (English) Zbl 07628657 J. Approx. Theory 285, Article ID 105832, 22 p. (2023). MSC: 65-XX 57R40 41A65 PDFBibTeX XMLCite \textit{R. Hielscher} and \textit{L. Lippert}, J. Approx. Theory 285, Article ID 105832, 22 p. (2023; Zbl 07628657) Full Text: DOI arXiv
Chu, Hùng Việt Variations of property (A) constants and Lebesgue-type inequalities for the weak thresholding greedy algorithms. (English) Zbl 1523.41011 J. Approx. Theory 285, Article ID 105831, 28 p. (2023). Reviewer: Sergei S. Platonov (Petrozavodsk) MSC: 41A65 46B15 PDFBibTeX XMLCite \textit{H. V. Chu}, J. Approx. Theory 285, Article ID 105831, 28 p. (2023; Zbl 1523.41011) Full Text: DOI arXiv
Borodin, Petr A.; Kopecká, Eva Sequences of \(m\)-term deviations in Hilbert space. (English) Zbl 1525.41015 J. Approx. Theory 284, Article ID 105821, 19 p. (2022). Reviewer: Francisco Pérez Acosta (La Laguna) MSC: 41A65 41A20 41A25 46C05 PDFBibTeX XMLCite \textit{P. A. Borodin} and \textit{E. Kopecká}, J. Approx. Theory 284, Article ID 105821, 19 p. (2022; Zbl 1525.41015) Full Text: DOI arXiv
Świderski, Grzegorz; Van Assche, Walter Christoffel functions for multiple orthogonal polynomials. (English) Zbl 1521.33006 J. Approx. Theory 283, Article ID 105820, 22 p. (2022). MSC: 33C45 41A28 42C05 PDFBibTeX XMLCite \textit{G. Świderski} and \textit{W. Van Assche}, J. Approx. Theory 283, Article ID 105820, 22 p. (2022; Zbl 1521.33006) Full Text: DOI arXiv
Lewicki, Grzegorz; Prophet, Michael Codimension 1 minimal projections onto the lines in \(L^p\). (English) Zbl 1522.46014 J. Approx. Theory 283, Article ID 105812, 16 p. (2022). MSC: 46B20 47A58 PDFBibTeX XMLCite \textit{G. Lewicki} and \textit{M. Prophet}, J. Approx. Theory 283, Article ID 105812, 16 p. (2022; Zbl 1522.46014) Full Text: DOI
Xiang, Jim X. On the approximation of functions in \(C^1 ( I )\) by a class of positive linear operators. (English) Zbl 1517.41011 J. Approx. Theory 281-282, Article ID 105800, 11 p. (2022). Reviewer: Zoltán Finta (Cluj-Napoca) MSC: 41A36 41A25 41A44 PDFBibTeX XMLCite \textit{J. X. Xiang}, J. Approx. Theory 281--282, Article ID 105800, 11 p. (2022; Zbl 1517.41011) Full Text: DOI
Nikolski, Nikolai; Volberg, Alexander Sign intermixing for Riesz bases and frames measured in the Kantorovich-Rubinstein norm. (English) Zbl 1518.46005 J. Approx. Theory 281-282, Article ID 105798, 19 p. (2022). MSC: 46B15 42C05 42C15 47B06 PDFBibTeX XMLCite \textit{N. Nikolski} and \textit{A. Volberg}, J. Approx. Theory 281--282, Article ID 105798, 19 p. (2022; Zbl 1518.46005) Full Text: DOI arXiv
Skorokhodov, Dmytro The Landau-Kolmogorov problem on a finite interval in the Taikov case. (English) Zbl 1508.41004 J. Approx. Theory 280, Article ID 105771, 17 p. (2022). Reviewer: Yuri A. Farkov (Moskva) MSC: 41A17 26D10 34B24 41A35 PDFBibTeX XMLCite \textit{D. Skorokhodov}, J. Approx. Theory 280, Article ID 105771, 17 p. (2022; Zbl 1508.41004) Full Text: DOI arXiv
Bejancu, Aurelian Uniformly bounded Lebesgue constants for scaled cardinal interpolation with Matérn kernels. (English) Zbl 1509.41003 J. Approx. Theory 278, Article ID 105740, 18 p. (2022). Reviewer: Mehmet Küçükaslan (Mersin) MSC: 41A05 41A25 41A63 PDFBibTeX XMLCite \textit{A. Bejancu}, J. Approx. Theory 278, Article ID 105740, 18 p. (2022; Zbl 1509.41003) Full Text: DOI arXiv
Prochno, Joscha; Strzelecki, Michał Approximation, Gelfand, and Kolmogorov numbers of Schatten class embeddings. (English) Zbl 07501643 J. Approx. Theory 277, Article ID 105736, 33 p. (2022). Reviewer: Mohamed Zohry (Tétouan) MSC: 47B10 47B06 46B20 46B06 46B07 46B28 68Q25 PDFBibTeX XMLCite \textit{J. Prochno} and \textit{M. Strzelecki}, J. Approx. Theory 277, Article ID 105736, 33 p. (2022; Zbl 07501643) Full Text: DOI arXiv
Temlyakov, Vladimir N.; Ullrich, Tino Approximation of functions with small mixed smoothness in the uniform norm. (English) Zbl 1502.41007 J. Approx. Theory 277, Article ID 105718, 23 p. (2022). MSC: 41A46 41A63 42A10 68Q25 94A20 PDFBibTeX XMLCite \textit{V. N. Temlyakov} and \textit{T. Ullrich}, J. Approx. Theory 277, Article ID 105718, 23 p. (2022; Zbl 1502.41007) Full Text: DOI arXiv
Migliorati, Giovanni; Nobile, Fabio Stable high-order randomized cubature formulae in arbitrary dimension. (English) Zbl 1504.65080 J. Approx. Theory 275, Article ID 105706, 30 p. (2022). MSC: 65D32 41A65 PDFBibTeX XMLCite \textit{G. Migliorati} and \textit{F. Nobile}, J. Approx. Theory 275, Article ID 105706, 30 p. (2022; Zbl 1504.65080) Full Text: DOI arXiv
Andrievskii, Vladimir; Nazarov, Fedor A simple upper bound for Lebesgue constants associated with Leja points on the real line. (English) Zbl 1497.41001 J. Approx. Theory 275, Article ID 105699, 13 p. (2022). Reviewer: Mohammed El Aïdi (Bogotá) MSC: 41A05 41A10 PDFBibTeX XMLCite \textit{V. Andrievskii} and \textit{F. Nazarov}, J. Approx. Theory 275, Article ID 105699, 13 p. (2022; Zbl 1497.41001) Full Text: DOI arXiv
Bencheikh, O.; Jourdain, B. Approximation rate in Wasserstein distance of probability measures on the real line by deterministic empirical measures. (English) Zbl 1481.60007 J. Approx. Theory 274, Article ID 105684, 27 p. (2022). MSC: 60B10 60-08 28A33 62E17 41A25 41A50 41A29 PDFBibTeX XMLCite \textit{O. Bencheikh} and \textit{B. Jourdain}, J. Approx. Theory 274, Article ID 105684, 27 p. (2022; Zbl 1481.60007) Full Text: DOI arXiv
Xie, Linsen; Wang, Shuli Strong converse inequality for linear combinations of Szász-Mirakjan operators. (English) Zbl 1487.41020 J. Approx. Theory 273, Article ID 105651, 12 p. (2022). Reviewer: Vijay Gupta (New Delhi) MSC: 41A17 41A27 PDFBibTeX XMLCite \textit{L. Xie} and \textit{S. Wang}, J. Approx. Theory 273, Article ID 105651, 12 p. (2022; Zbl 1487.41020) Full Text: DOI
Reich, Simeon; Zalas, Rafał Error bounds for the method of simultaneous projections with infinitely many subspaces. (English) Zbl 1487.41026 J. Approx. Theory 272, Article ID 105648, 24 p. (2021). Reviewer: Vijay Gupta (New Delhi) MSC: 41A28 41A65 PDFBibTeX XMLCite \textit{S. Reich} and \textit{R. Zalas}, J. Approx. Theory 272, Article ID 105648, 24 p. (2021; Zbl 1487.41026) Full Text: DOI arXiv
De Marchi, Stefano; Elefante, Giacomo; Marchetti, Francesco On \((\beta,\gamma)\)-Chebyshev functions and points of the interval. (English) Zbl 1482.41001 J. Approx. Theory 271, Article ID 105634, 17 p. (2021). Reviewer: Marcel G. de Bruin (Heemstede) MSC: 41A05 33C45 42C05 PDFBibTeX XMLCite \textit{S. De Marchi} et al., J. Approx. Theory 271, Article ID 105634, 17 p. (2021; Zbl 1482.41001) Full Text: DOI arXiv
Kolomoitsev, Yurii; Prestin, Jürgen Approximation properties of periodic multivariate quasi-interpolation operators. (English) Zbl 1475.41008 J. Approx. Theory 270, Article ID 105631, 24 p. (2021). Reviewer: Martin D. Buhmann (Gießen) MSC: 41A35 41A25 41A27 42A10 42A15 PDFBibTeX XMLCite \textit{Y. Kolomoitsev} and \textit{J. Prestin}, J. Approx. Theory 270, Article ID 105631, 24 p. (2021; Zbl 1475.41008) Full Text: DOI arXiv
Huang, Chao; Zhang, Qian; Huang, Jianfeng; Yang, Lihua Approximation theorems on graphs. (English) Zbl 1473.05296 J. Approx. Theory 270, Article ID 105620, 16 p. (2021). MSC: 05C99 05C50 42A38 42A16 41A25 41A99 PDFBibTeX XMLCite \textit{C. Huang} et al., J. Approx. Theory 270, Article ID 105620, 16 p. (2021; Zbl 1473.05296) Full Text: DOI
San Antolín, A. Density order of Parseval wavelet frames from extension principles. (English) Zbl 1481.42041 J. Approx. Theory 270, Article ID 105617, 14 p. (2021). Reviewer: Hans-Georg Stark (Aschaffenburg) MSC: 42C15 42C40 41A45 41A25 41A63 41A65 PDFBibTeX XMLCite \textit{A. San Antolín}, J. Approx. Theory 270, Article ID 105617, 14 p. (2021; Zbl 1481.42041) Full Text: DOI Link
Jahn, Thomas; Ullrich, Tino On the optimal constants in the two-sided Stechkin inequalities. (English) Zbl 1473.41002 J. Approx. Theory 269, Article ID 105607, 25 p. (2021). Reviewer: D. K. Ugulava (Tbilisi) MSC: 41A17 41A44 46E30 PDFBibTeX XMLCite \textit{T. Jahn} and \textit{T. Ullrich}, J. Approx. Theory 269, Article ID 105607, 25 p. (2021; Zbl 1473.41002) Full Text: DOI arXiv
Combettes, Patrick L.; Woodstock, Zev C. Reconstruction of functions from prescribed proximal points. (English) Zbl 1472.41014 J. Approx. Theory 268, Article ID 105606, 26 p. (2021). Reviewer: Francisco Pérez Acosta (La Laguna) MSC: 41A50 41A29 41A65 PDFBibTeX XMLCite \textit{P. L. Combettes} and \textit{Z. C. Woodstock}, J. Approx. Theory 268, Article ID 105606, 26 p. (2021; Zbl 1472.41014) Full Text: DOI arXiv
Prymak, A. Geometric computation of Christoffel functions on planar convex domains. (English) Zbl 1469.42028 J. Approx. Theory 268, Article ID 105603, 13 p. (2021). Reviewer: Marcel G. de Bruin (Heemstede) MSC: 42C05 41A17 41A63 26D05 42B99 PDFBibTeX XMLCite \textit{A. Prymak}, J. Approx. Theory 268, Article ID 105603, 13 p. (2021; Zbl 1469.42028) Full Text: DOI arXiv
Alimov, A. R.; Tsar’kov, I. G. Smoothness of subspace sections of the unit balls of \(C(Q)\) and \(L^1\). (English) Zbl 1464.46022 J. Approx. Theory 265, Article ID 105552, 8 p. (2021). Reviewer: Elói M. Galego (São Paulo) MSC: 46E15 41A65 PDFBibTeX XMLCite \textit{A. R. Alimov} and \textit{I. G. Tsar'kov}, J. Approx. Theory 265, Article ID 105552, 8 p. (2021; Zbl 1464.46022) Full Text: DOI
Irigoyen, Amadeo Multidimensional intertwining Leja sequences and applications in bidimensional Lagrange interpolation. (English) Zbl 1460.41002 J. Approx. Theory 264, Article ID 105540, 21 p. (2021). Reviewer: Kai Diethelm (Schweinfurt) MSC: 41A05 41A63 PDFBibTeX XMLCite \textit{A. Irigoyen}, J. Approx. Theory 264, Article ID 105540, 21 p. (2021; Zbl 1460.41002) Full Text: DOI arXiv
Kozlowski, Wojciech M. (Walter) On modular approximants in sequential convergence spaces. (English) Zbl 1462.41015 J. Approx. Theory 264, Article ID 105535, 14 p. (2021). Reviewer: Stefan Cobzaş (Cluj-Napoca) MSC: 41A65 41A52 46A19 46A80 46B20 54A20 PDFBibTeX XMLCite \textit{W. M. Kozlowski}, J. Approx. Theory 264, Article ID 105535, 14 p. (2021; Zbl 1462.41015) Full Text: DOI
Leblond, Juliette; Pozzi, Elodie Solutions to inverse moment estimation problems in dimension 2, using best constrained approximation. (English) Zbl 1477.65091 J. Approx. Theory 264, Article ID 105520, 24 p. (2021). Reviewer: Francisco Pérez Acosta (La Laguna) MSC: 65J22 35Q60 44A15 47N10 PDFBibTeX XMLCite \textit{J. Leblond} and \textit{E. Pozzi}, J. Approx. Theory 264, Article ID 105520, 24 p. (2021; Zbl 1477.65091) Full Text: DOI arXiv
Magnus, Alphonse P.; Ndayiragije, François; Ronveaux, André About families of orthogonal polynomials satisfying Heun’s differential equation. (English) Zbl 1462.33004 J. Approx. Theory 263, Article ID 105522, 30 p. (2021). Reviewer: Thomas Ernst (Uppsala) MSC: 33C45 34M35 34M55 41A21 42C05 81Q05 PDFBibTeX XMLCite \textit{A. P. Magnus} et al., J. Approx. Theory 263, Article ID 105522, 30 p. (2021; Zbl 1462.33004) Full Text: DOI
Martynov, O. M. Constants of strong uniqueness of minimal projections onto some \(n\)-dimensional subspaces of \(l_\infty^{2n}$ ($n \geq 2$). (English) Zbl 1468.41012 J. Approx. Theory 262, Article ID 105507, 8 p. (2021). MSC: 41A52 41A65 46B20 47B37 PDFBibTeX XMLCite \textit{O. M. Martynov}, J. Approx. Theory 262, Article ID 105507, 8 p. (2021; Zbl 1468.41012) Full Text: DOI
Díaz-González, Abel; Pijeira-Cabrera, Héctor; Pérez-Yzquierdo, Ignacio Rational approximation and Sobolev-type orthogonality. (English) Zbl 1452.41006 J. Approx. Theory 260, Article ID 105481, 19 p. (2020). Reviewer: Francisco Marcellán (Leganes) MSC: 41A20 30E10 33C47 42C05 PDFBibTeX XMLCite \textit{A. Díaz-González} et al., J. Approx. Theory 260, Article ID 105481, 19 p. (2020; Zbl 1452.41006) Full Text: DOI arXiv
Alpan, Gökalp; Zinchenko, Maxim On the Widom factors for \(L_p\) extremal polynomials. (English) Zbl 1452.41003 J. Approx. Theory 259, Article ID 105480, 18 p. (2020). Reviewer: Klaus Schiefermayr (Wels) MSC: 41A17 33C45 41A44 42C05 PDFBibTeX XMLCite \textit{G. Alpan} and \textit{M. Zinchenko}, J. Approx. Theory 259, Article ID 105480, 18 p. (2020; Zbl 1452.41003) Full Text: DOI arXiv
Burusheva, L.; Temlyakov, V. Sparse approximation of individual functions. (English) Zbl 1451.41011 J. Approx. Theory 259, Article ID 105471, 12 p. (2020). Reviewer: Manfred Tasche (Rostock) MSC: 41A65 41A25 46B20 PDFBibTeX XMLCite \textit{L. Burusheva} and \textit{V. Temlyakov}, J. Approx. Theory 259, Article ID 105471, 12 p. (2020; Zbl 1451.41011) Full Text: DOI arXiv
Gorbachev, D. V.; Ivanov, V. I.; Tikhonov, S. Yu. Sharp approximation theorems and Fourier inequalities in the Dunkl setting. (English) Zbl 1452.42006 J. Approx. Theory 258, Article ID 105462, 30 p. (2020). Reviewer: Elijah Liflyand (Ramat-Gan) MSC: 42B10 33C45 33C52 41A50 42A10 PDFBibTeX XMLCite \textit{D. V. Gorbachev} et al., J. Approx. Theory 258, Article ID 105462, 30 p. (2020; Zbl 1452.42006) Full Text: DOI arXiv
Boche, Holger; Pohl, Volker Calculating the spectral factorization and outer functions by sampling-based approximations – fundamental limitations. (English) Zbl 1457.94065 J. Approx. Theory 257, Article ID 105450, 17 p. (2020). MSC: 94A20 93E03 41A65 47A68 65D15 PDFBibTeX XMLCite \textit{H. Boche} and \textit{V. Pohl}, J. Approx. Theory 257, Article ID 105450, 17 p. (2020; Zbl 1457.94065) Full Text: DOI
Buhmann, Martin; Jäger, Janin Pólya-type criteria for conditional strict positive definiteness of functions on spheres. (English) Zbl 1446.41001 J. Approx. Theory 257, Article ID 105440, 18 p. (2020). Reviewer: Peter Massopust (München) MSC: 41A05 42A82 PDFBibTeX XMLCite \textit{M. Buhmann} and \textit{J. Jäger}, J. Approx. Theory 257, Article ID 105440, 18 p. (2020; Zbl 1446.41001) Full Text: DOI
Kainen, Paul C.; Kůrková, Věra; Vogt, Andrew Approximative compactness of linear combinations of characteristic functions. (English) Zbl 1445.41020 J. Approx. Theory 257, Article ID 105435, 16 p. (2020). Reviewer: T.S.S.R.K. Rao (Bangalore) MSC: 41A65 28A20 41A45 52A37 68T05 92B20 PDFBibTeX XMLCite \textit{P. C. Kainen} et al., J. Approx. Theory 257, Article ID 105435, 16 p. (2020; Zbl 1445.41020) Full Text: DOI
Buhmann, Martin; Jäger, Janin Multiply monotone functions for radial basis function interpolation: extensions and new kernels. (English) Zbl 1441.41001 J. Approx. Theory 256, Article ID 105434, 21 p. (2020). Reviewer: Francisco Marcellán (Leganes) MSC: 41A05 41A63 42A82 PDFBibTeX XMLCite \textit{M. Buhmann} and \textit{J. Jäger}, J. Approx. Theory 256, Article ID 105434, 21 p. (2020; Zbl 1441.41001) Full Text: DOI
Doležalová, Anna; Vybíral, Jan On the volume of unit balls of finite-dimensional Lorentz spaces. (English) Zbl 1445.46013 J. Approx. Theory 255, Article ID 105407, 19 p. (2020). Reviewer: Carsten Schütt (Kiel) MSC: 46B07 52A21 52A38 47B06 PDFBibTeX XMLCite \textit{A. Doležalová} and \textit{J. Vybíral}, J. Approx. Theory 255, Article ID 105407, 19 p. (2020; Zbl 1445.46013) Full Text: DOI arXiv
Dyn, Nira; Jüttler, Bert; Mokriš, Dominik On the error in transfinite interpolation by low-rank functions. (English) Zbl 1486.65015 J. Approx. Theory 253, Article ID 105379, 7 p. (2020). Reviewer: Antonio López-Carmona (Granada) MSC: 65D05 41A05 PDFBibTeX XMLCite \textit{N. Dyn} et al., J. Approx. Theory 253, Article ID 105379, 7 p. (2020; Zbl 1486.65015) Full Text: DOI
Chang, Qingjun; Deng, Chongyang; Floater, Michael S. An interpolatory view of polynomial least squares approximation. (English) Zbl 1435.41004 J. Approx. Theory 252, Article ID 105360, 11 p. (2020). MSC: 41A10 41A05 PDFBibTeX XMLCite \textit{Q. Chang} et al., J. Approx. Theory 252, Article ID 105360, 11 p. (2020; Zbl 1435.41004) Full Text: DOI Link
Nguyen, Van Kien Greedy algorithms and Kolmogorov widths in Banach spaces. (English) Zbl 1434.41023 J. Approx. Theory 251, Article ID 105344, 14 p. (2020). MSC: 41A46 41A60 46B06 PDFBibTeX XMLCite \textit{V. K. Nguyen}, J. Approx. Theory 251, Article ID 105344, 14 p. (2020; Zbl 1434.41023) Full Text: DOI arXiv
Borbély, Albert; Johnson, Michael J. Elastic splines III: existence of stable nonlinear splines. (English) Zbl 1434.41003 J. Approx. Theory 251, Article ID 105326, 18 p. (2020). MSC: 41A15 41A05 65D07 PDFBibTeX XMLCite \textit{A. Borbély} and \textit{M. J. Johnson}, J. Approx. Theory 251, Article ID 105326, 18 p. (2020; Zbl 1434.41003) Full Text: DOI
Dũng, Dinh; Thao, Mai Xuan Dimension-dependent error estimates for sampling recovery on Smolyak grids based on B-spline quasi-interpolation. (English) Zbl 1431.41003 J. Approx. Theory 250, Article ID 105338, 30 p. (2020). Reviewer: Martin D. Buhmann (Gießen) MSC: 41A15 41A05 41A25 41A58 41A63 PDFBibTeX XMLCite \textit{D. Dũng} and \textit{M. X. Thao}, J. Approx. Theory 250, Article ID 105338, 30 p. (2020; Zbl 1431.41003) Full Text: DOI
Leurs, Marjolein; Van Assche, Walter Laguerre-Angelesco multiple orthogonal polynomials on an \(r\)-star. (English) Zbl 1437.33008 J. Approx. Theory 250, Article ID 105324, 30 p. (2020). Reviewer: Marcel G. de Bruin (Heemstede) MSC: 33C45 42C05 41A28 PDFBibTeX XMLCite \textit{M. Leurs} and \textit{W. Van Assche}, J. Approx. Theory 250, Article ID 105324, 30 p. (2020; Zbl 1437.33008) Full Text: DOI arXiv
López-García, Abey; López Lagomasino, Guillermo Nikishin systems on star-like sets: ratio asymptotics of the associated multiple orthogonal polynomials. II. (English) Zbl 1440.42121 J. Approx. Theory 250, Article ID 105320, 28 p. (2020). MSC: 42C05 30E10 47B39 PDFBibTeX XMLCite \textit{A. López-García} and \textit{G. López Lagomasino}, J. Approx. Theory 250, Article ID 105320, 28 p. (2020; Zbl 1440.42121) Full Text: DOI arXiv
Alexeeva, Tatyana A.; Shirokov, Nikolay A. Constructive description of Hölder-like classes on an arc in \(\mathbb{R}^3\) by means of harmonic functions. (English) Zbl 1429.41014 J. Approx. Theory 249, Article ID 105308, 19 p. (2020). Reviewer: Sergei S. Platonov (Petrozavodsk) MSC: 41A30 41A27 PDFBibTeX XMLCite \textit{T. A. Alexeeva} and \textit{N. A. Shirokov}, J. Approx. Theory 249, Article ID 105308, 19 p. (2020; Zbl 1429.41014) Full Text: DOI arXiv
Boche, Holger; Pohl, Volker On approximations for functions in the space of uniformly convergent Fourier series. (English) Zbl 1431.42003 J. Approx. Theory 249, Article ID 105307, 28 p. (2020). Reviewer: Sorin Gheorghe Gal (Oradea) MSC: 42A20 41A65 68Q04 94A20 PDFBibTeX XMLCite \textit{H. Boche} and \textit{V. Pohl}, J. Approx. Theory 249, Article ID 105307, 28 p. (2020; Zbl 1431.42003) Full Text: DOI
Madych, W. R. The limiting behavior of certain sampling series and cardinal splines. (English) Zbl 1434.94044 J. Approx. Theory 249, Article ID 105298, 26 p. (2020). MSC: 94A20 41A15 41A05 42B35 PDFBibTeX XMLCite \textit{W. R. Madych}, J. Approx. Theory 249, Article ID 105298, 26 p. (2020; Zbl 1434.94044) Full Text: DOI
Berná, P. M.; Dilworth, S. J.; Kutzarova, D.; Oikhberg, T.; Wallis, B. The weighted property (A) and the greedy algorithm. (English) Zbl 1440.46011 J. Approx. Theory 248, Article ID 105300, 18 p. (2019). MSC: 46B15 41A65 PDFBibTeX XMLCite \textit{P. M. Berná} et al., J. Approx. Theory 248, Article ID 105300, 18 p. (2019; Zbl 1440.46011) Full Text: DOI arXiv
Chen, Deliang A note on Machado-Bishop theorem in weighted spaces with applications. (English) Zbl 1429.41033 J. Approx. Theory 247, 1-19 (2019). Reviewer: Francisco Pérez Acosta (La Laguna) MSC: 41A65 46E40 PDFBibTeX XMLCite \textit{D. Chen}, J. Approx. Theory 247, 1--19 (2019; Zbl 1429.41033) Full Text: DOI arXiv
Kounchev, O.; Render, H. Interpolation of data functions on parallel hyperplanes. (English) Zbl 1431.31004 J. Approx. Theory 246, 43-61 (2019). Reviewer: Francisco Pérez Acosta (La Laguna) MSC: 31B30 41A05 41A21 35J30 PDFBibTeX XMLCite \textit{O. Kounchev} and \textit{H. Render}, J. Approx. Theory 246, 43--61 (2019; Zbl 1431.31004) Full Text: DOI
Wójcik, Paweł Extensions of linear operators from hyperplanes and strong uniqueness of best approximation in \(\mathcal{L}(X, W)\). (English) Zbl 1428.46013 J. Approx. Theory 246, 28-42 (2019). Reviewer: Francisco Pérez Acosta (La Laguna) MSC: 46B20 41A52 41A65 PDFBibTeX XMLCite \textit{P. Wójcik}, J. Approx. Theory 246, 28--42 (2019; Zbl 1428.46013) Full Text: DOI
Mastroianni, G.; Notarangelo, I. Lagrange interpolation at Pollaczek-Laguerre zeros on the real semiaxis. (English) Zbl 1423.41002 J. Approx. Theory 245, 83-100 (2019). Reviewer: Martin D. Buhmann (Gießen) MSC: 41A05 41A10 PDFBibTeX XMLCite \textit{G. Mastroianni} and \textit{I. Notarangelo}, J. Approx. Theory 245, 83--100 (2019; Zbl 1423.41002) Full Text: DOI
Chen, Liang; Zhang, Haizhang Sharp exponential bounds for the Gaussian regularized Whittaker-Kotelnikov-Shannon sampling series. (English) Zbl 1428.62042 J. Approx. Theory 245, 73-82 (2019). MSC: 62D05 62B10 41A25 PDFBibTeX XMLCite \textit{L. Chen} and \textit{H. Zhang}, J. Approx. Theory 245, 73--82 (2019; Zbl 1428.62042) Full Text: DOI
Costarelli, Danilo; Vinti, Gianluca Inverse results of approximation and the saturation order for the sampling Kantorovich series. (English) Zbl 1416.41019 J. Approx. Theory 242, 64-82 (2019). Reviewer: Bogdan Szal (Zielona Gora) MSC: 41A25 41A05 PDFBibTeX XMLCite \textit{D. Costarelli} and \textit{G. Vinti}, J. Approx. Theory 242, 64--82 (2019; Zbl 1416.41019) Full Text: DOI
Sidon, Jean Local and global error estimates for Berrut’s rational interpolant at well-spaced nodes. (English) Zbl 1411.41006 J. Approx. Theory 241, 79-85 (2019). Reviewer: Antonio López Carmona (Granada) MSC: 41A05 65D05 PDFBibTeX XMLCite \textit{J. Sidon}, J. Approx. Theory 241, 79--85 (2019; Zbl 1411.41006) Full Text: DOI
Bos, Len Markov factors on average – an \(L_2\) case. (English) Zbl 1521.41005 J. Approx. Theory 241, 1-10 (2019). MSC: 41A17 41A44 PDFBibTeX XMLCite \textit{L. Bos}, J. Approx. Theory 241, 1--10 (2019; Zbl 1521.41005) Full Text: DOI
Carnicer, J. M.; Khiar, Y.; Peña, J. M. Optimal stability of the Lagrange formula and conditioning of the Newton formula. (English) Zbl 1407.41002 J. Approx. Theory 238, 52-66 (2019). Reviewer: Martin D. Buhmann (Gießen) MSC: 41A05 41A10 65D05 PDFBibTeX XMLCite \textit{J. M. Carnicer} et al., J. Approx. Theory 238, 52--66 (2019; Zbl 1407.41002) Full Text: DOI Link
Diederichs, Benedikt; Iske, Armin Improved estimates for condition numbers of radial basis function interpolation matrices. (English) Zbl 1407.41003 J. Approx. Theory 238, 38-51 (2019). Reviewer: Martin D. Buhmann (Gießen) MSC: 41A05 41A63 65D05 PDFBibTeX XMLCite \textit{B. Diederichs} and \textit{A. Iske}, J. Approx. Theory 238, 38--51 (2019; Zbl 1407.41003) Full Text: DOI
González Merino, Bernardo; Jahn, Thomas; Richter, Christian Uniqueness of circumcenters in generalized Minkowski spaces. (English) Zbl 1402.52003 J. Approx. Theory 237, 153-159 (2019). MSC: 52A20 41A28 41A52 41A65 52A21 52A40 PDFBibTeX XMLCite \textit{B. González Merino} et al., J. Approx. Theory 237, 153--159 (2019; Zbl 1402.52003) Full Text: DOI arXiv
Kopotun, K. A.; Leviatan, D.; Shevchuk, I. A. On weighted approximation with Jacobi weights. (English) Zbl 1401.41007 J. Approx. Theory 237, 96-112 (2019). Reviewer: Klaus Schiefermayr (Wels) MSC: 41A10 41A27 PDFBibTeX XMLCite \textit{K. A. Kopotun} et al., J. Approx. Theory 237, 96--112 (2019; Zbl 1401.41007) Full Text: DOI arXiv
Babierra, Ariel L.; Reyes, Noli N. A new characterization of the generalized inverse using projections on level sets. (English) Zbl 1402.41005 J. Approx. Theory 236, 23-35 (2018). Reviewer: Francisco Pérez Acosta (La Laguna) MSC: 41A25 41A65 41A99 46B50 46C05 46C07 46C99 46N10 46N99 47B15 52A07 52A27 PDFBibTeX XMLCite \textit{A. L. Babierra} and \textit{N. N. Reyes}, J. Approx. Theory 236, 23--35 (2018; Zbl 1402.41005) Full Text: DOI
Stabile, R. L. B.; Tozoni, S. A. Estimates for entropy numbers of sets of smooth functions on the torus \(\mathbb{T}^d\). (English) Zbl 1400.41024 J. Approx. Theory 235, 92-115 (2018). MSC: 41A46 42B25 PDFBibTeX XMLCite \textit{R. L. B. Stabile} and \textit{S. A. Tozoni}, J. Approx. Theory 235, 92--115 (2018; Zbl 1400.41024) Full Text: DOI
Foucart, Simon; Lasserre, Jean B. Determining projection constants of univariate polynomial spaces. (English) Zbl 1407.90248 J. Approx. Theory 235, 74-91 (2018). MSC: 90C22 90C47 41A44 65K05 PDFBibTeX XMLCite \textit{S. Foucart} and \textit{J. B. Lasserre}, J. Approx. Theory 235, 74--91 (2018; Zbl 1407.90248) Full Text: DOI arXiv
Schaback, Robert Superconvergence of kernel-based interpolation. (English) Zbl 1400.41003 J. Approx. Theory 235, 1-19 (2018). Reviewer: Antonio López Carmona (Granada) MSC: 41A05 45C05 65D05 PDFBibTeX XMLCite \textit{R. Schaback}, J. Approx. Theory 235, 1--19 (2018; Zbl 1400.41003) Full Text: DOI arXiv
Sorokina, Tatyana Bivariate splines on Tohǎneanu partition. (English) Zbl 1439.41006 J. Approx. Theory 232, 6-11 (2018). Reviewer: Martin D. Buhmann (Gießen) MSC: 41A15 41A05 41A10 PDFBibTeX XMLCite \textit{T. Sorokina}, J. Approx. Theory 232, 6--11 (2018; Zbl 1439.41006) Full Text: DOI
Bosuwan, N.; López Lagomasino, G. Determining system poles using row sequences of orthogonal Hermite-Padé approximants. (English) Zbl 1392.41010 J. Approx. Theory 231, 15-40 (2018). Reviewer: Marcel G. de Bruin (Heemstede) MSC: 41A21 41A28 41A25 41A27 30E10 PDFBibTeX XMLCite \textit{N. Bosuwan} and \textit{G. López Lagomasino}, J. Approx. Theory 231, 15--40 (2018; Zbl 1392.41010) Full Text: DOI arXiv
Albiac, Fernando; Ansorena, José L.; Wallis, Ben 1-greedy renormings of Garling sequence spaces. (English) Zbl 1396.46009 J. Approx. Theory 230, 13-23 (2018). Reviewer: Costică Mustăţa (Cluj-Napoca) MSC: 46B15 41A65 46B03 46B45 PDFBibTeX XMLCite \textit{F. Albiac} et al., J. Approx. Theory 230, 13--23 (2018; Zbl 1396.46009) Full Text: DOI arXiv
Kolomoitsev, Yurii; Lomako, Tetiana; Prestin, Jürgen On \(L_p\)-error of bivariate polynomial interpolation on the square. (English) Zbl 1456.41001 J. Approx. Theory 229, 13-35 (2018). MSC: 41A05 41A25 42A15 PDFBibTeX XMLCite \textit{Y. Kolomoitsev} et al., J. Approx. Theory 229, 13--35 (2018; Zbl 1456.41001) Full Text: DOI arXiv
Ganzburg, Michael I. Exact errors of best approximation for complex-valued nonperiodic functions. (English) Zbl 1390.41034 J. Approx. Theory 229, 1-12 (2018). Reviewer: Francisco Pérez Acosta (La Laguna) MSC: 41A44 41A30 PDFBibTeX XMLCite \textit{M. I. Ganzburg}, J. Approx. Theory 229, 1--12 (2018; Zbl 1390.41034) Full Text: DOI
Chunaev, Petr; Danchenko, Vladimir Quadrature formulas with variable nodes and Jackson-Nikolskii inequalities for rational functions. (English) Zbl 1387.41015 J. Approx. Theory 228, 1-20 (2018). Reviewer: Josef Kofroň (Praha) MSC: 41A55 41A17 41A44 30E20 PDFBibTeX XMLCite \textit{P. Chunaev} and \textit{V. Danchenko}, J. Approx. Theory 228, 1--20 (2018; Zbl 1387.41015) Full Text: DOI arXiv
Hamada, H.; Iancu, M.; Kohr, G.; Schleißinger, S. Approximation properties of univalent mappings on the unit ball in \(\mathbb{C}^n\). (English) Zbl 1390.32004 J. Approx. Theory 226, 14-33 (2018). MSC: 32A30 30C45 PDFBibTeX XMLCite \textit{H. Hamada} et al., J. Approx. Theory 226, 14--33 (2018; Zbl 1390.32004) Full Text: DOI arXiv
Oikhberg, T. Greedy algorithm with gaps. (English) Zbl 1381.41034 J. Approx. Theory 225, 176-190 (2018). Reviewer: Stefan Cobzaş (Cluj-Napoca) MSC: 41A65 41A46 46B15 PDFBibTeX XMLCite \textit{T. Oikhberg}, J. Approx. Theory 225, 176--190 (2018; Zbl 1381.41034) Full Text: DOI
Yattselev, Maxim L. Symmetric contours and convergent interpolation. (English) Zbl 1383.42025 J. Approx. Theory 225, 76-105 (2018). Reviewer: Marcel G. de Bruin (Heemstede) MSC: 42C05 41A20 41A21 PDFBibTeX XMLCite \textit{M. L. Yattselev}, J. Approx. Theory 225, 76--105 (2018; Zbl 1383.42025) Full Text: DOI arXiv
Kobos, Tomasz A uniform estimate of the relative projection constant. (English) Zbl 1507.47037 J. Approx. Theory 225, 58-75 (2018). MSC: 47A58 41A65 47A30 52A21 PDFBibTeX XMLCite \textit{T. Kobos}, J. Approx. Theory 225, 58--75 (2018; Zbl 1507.47037) Full Text: DOI arXiv
López-García, Abey; López Lagomasino, Guillermo Nikishin systems on star-like sets: ratio asymptotics of the associated multiple orthogonal polynomials. (English) Zbl 1381.42036 J. Approx. Theory 225, 1-40 (2018). Reviewer: Adhemar Bultheel (Leuven) MSC: 42C05 30E10 47B39 PDFBibTeX XMLCite \textit{A. López-García} and \textit{G. López Lagomasino}, J. Approx. Theory 225, 1--40 (2018; Zbl 1381.42036) Full Text: DOI arXiv
Hogan, Jeffrey A.; Massopust, Peter Quaternionic B-splines. (English) Zbl 1376.65011 J. Approx. Theory 224, 43-65 (2017). MSC: 65D07 41A15 94A12 33B15 65T60 PDFBibTeX XMLCite \textit{J. A. Hogan} and \textit{P. Massopust}, J. Approx. Theory 224, 43--65 (2017; Zbl 1376.65011) Full Text: DOI arXiv
Reich, Simeon; Zalas, Rafał The optimal error bound for the method of simultaneous projections. (English) Zbl 1381.41013 J. Approx. Theory 223, 96-107 (2017). Reviewer: Aurelian Bejancu (Safat) MSC: 41A25 41A28 41A44 41A65 PDFBibTeX XMLCite \textit{S. Reich} and \textit{R. Zalas}, J. Approx. Theory 223, 96--107 (2017; Zbl 1381.41013) Full Text: DOI arXiv
Veselý, Libor Quasi uniform convexity – revisited. (English) Zbl 1385.46012 J. Approx. Theory 223, 64-76 (2017). Reviewer: Stefan Cobzaş (Cluj-Napoca) MSC: 46B20 41A65 41A46 46E40 PDFBibTeX XMLCite \textit{L. Veselý}, J. Approx. Theory 223, 64--76 (2017; Zbl 1385.46012) Full Text: DOI
Li, Bing-Zheng; He, Bo-Lu; Zhou, Ding-Xuan Approximation on variable exponent spaces by linear integral operators. (English) Zbl 1373.41017 J. Approx. Theory 223, 29-51 (2017). Reviewer: Vijay Gupta (New Delhi) MSC: 41A35 41A45 PDFBibTeX XMLCite \textit{B.-Z. Li} et al., J. Approx. Theory 223, 29--51 (2017; Zbl 1373.41017) Full Text: DOI
Goldman, Gil A case of multivariate Birkhoff interpolation using high order derivatives. (English) Zbl 1373.41001 J. Approx. Theory 223, 19-28 (2017). Reviewer: Martin D. Buhmann (Gießen) MSC: 41A05 41A63 PDFBibTeX XMLCite \textit{G. Goldman}, J. Approx. Theory 223, 19--28 (2017; Zbl 1373.41001) Full Text: DOI arXiv
Boche, Holger; Mönich, Ullrich J.; Tampubolon, Ezra Spaceability and strong divergence of the Shannon sampling series and applications. (English) Zbl 1421.94023 J. Approx. Theory 222, 157-174 (2017). MSC: 94A20 30E05 30E10 41A60 PDFBibTeX XMLCite \textit{H. Boche} et al., J. Approx. Theory 222, 157--174 (2017; Zbl 1421.94023) Full Text: DOI
Floater, Michael S. Polynomial interpolation on interlacingrectangular grids. (English) Zbl 1373.65010 J. Approx. Theory 222, 64-73 (2017). MSC: 65D05 41A05 41A10 41A63 65D25 65F40 PDFBibTeX XMLCite \textit{M. S. Floater}, J. Approx. Theory 222, 64--73 (2017; Zbl 1373.65010) Full Text: DOI
Dencker, Peter; Erb, Wolfgang Multivariate polynomial interpolation on Lissajous-Chebyshev nodes. (English) Zbl 1367.41023 J. Approx. Theory 219, 15-45 (2017). Reviewer: Martin D. Buhmann (Gießen) MSC: 41A63 41A05 PDFBibTeX XMLCite \textit{P. Dencker} and \textit{W. Erb}, J. Approx. Theory 219, 15--45 (2017; Zbl 1367.41023) Full Text: DOI arXiv