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Found 203 Documents (Results 1–100)

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Occorsio, Donatella; Themistoclakis, Woula
Uniform weighted approximation by multivariate filtered polynomials. (English) Zbl 07249919
Sergeyev, Yaroslav D. (ed.) et al., Numerical computations: theory and algorithms. Third international conference, NUMTA 2019, Crotone, Italy, June 15–21, 2019. Revised selected papers. Part I. Cham: Springer (ISBN 978-3-030-39080-8/pbk; 978-3-030-39081-5/ebook). Lecture Notes in Computer Science 11973, 86-100 (2020).
MSC:  65
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\textit{D. Occorsio} and \textit{W. Themistoclakis}, Lect. Notes Comput. Sci. 11973, 86--100 (2020; Zbl 07249919)
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Shevaldin, Valeriĭ T.
Uniform Lebesgue constants of local spline approximation. (English. Russian original) Zbl 1423.41010
Proc. Steklov Inst. Math. 303, Suppl. 1, S196-S202 (2018); translation from Tr. Inst. Mat. Mekh. (Ekaterinburg) 23, No. 3, 292-299 (2017).
Reviewer: V. Leontiev (Ul’yanovsk)
MSC:  41A15
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\textit{V. T. Shevaldin}, Proc. Steklov Inst. Math. 303, S196--S202 (2018; Zbl 1423.41010); translation from Tr. Inst. Mat. Mekh. (Ekaterinburg) 23, No. 3, 292--299 (2017)
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Shevaldin, Valerii T.; Shevaldina, O. Ya.
Upper bounds for uniform Lebesgue constants of interpolation periodic sourcewise representable splines. (English. Russian original) Zbl 1376.41007
Proc. Steklov Inst. Math. 297, Suppl. 1, S175-S181 (2017); translation from Tr. Inst. Mat. Mekh. (Ekaterinburg) 21, No. 4, 309-315 (2015).
Reviewer: Martin D. Buhmann (Gießen)
MSC:  41A15
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\textit{V. T. Shevaldin} and \textit{O. Ya. Shevaldina}, Proc. Steklov Inst. Math. 297, S175--S181 (2017; Zbl 1376.41007); translation from Tr. Inst. Mat. Mekh. (Ekaterinburg) 21, No. 4, 309--315 (2015)
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Astashkin, S. V.; Semenov, E. M.
Lebesgue constants of the Walsh system. (English. Russian original) Zbl 1329.42026
Dokl. Math. 91, No. 3, 344-346 (2015); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 462, No. 5, 509-511 (2015).
Reviewer: S. F. Lukomskii (Saratov)
MSC:  42C10 43A75
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\textit{S. V. Astashkin} and \textit{E. M. Semenov}, Dokl. Math. 91, No. 3, 344--346 (2015; Zbl 1329.42026); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 462, No. 5, 509--511 (2015)
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Shakirov, I. A.
Influence of the choice of Lagrange interpolation nodes on the exact and approximate values of the Lebesgue constants. (English. Russian original) Zbl 1323.41005
Sib. Math. J. 55, No. 6, 1144-1160 (2014); translation from Sib. Mat. Zh. 55, No. 6, 1404-1423 (2014).
Reviewer: Alexei Lukashov (Saratov)
MSC:  41A05
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\textit{I. A. Shakirov}, Sib. Math. J. 55, No. 6, 1144--1160 (2014; Zbl 1323.41005); translation from Sib. Mat. Zh. 55, No. 6, 1404--1423 (2014)
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Stenger, Frank; El-Sharkawy, Hany A. M.; Baumann, Gerd
The Lebesgue constant for sinc approximations. (English) Zbl 1314.42002
Zayed, Ahmed I. (ed.) et al., New perspectives on approximation and sampling theory. Festschrift in honor of Paul Butzer’s 85th birthday. Cham: Birkhäuser/Springer (ISBN 978-3-319-08800-6/hbk; 978-3-319-08801-3/ebook). Applied and Numerical Harmonic Analysis, 319-335 (2014).
MSC:  42A10 42A15 41A05 41A55 41A20
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\textit{F. Stenger} et al., in: New perspectives on approximation and sampling theory. Festschrift in honor of Paul Butzer's 85th birthday. Cham: Birkhäuser/Springer. 319--335 (2014; Zbl 1314.42002)
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Motornaya, O. V.; Motornyi, V. P.
Generalized Lebesgue constants and the convergence of Fourier-Jacobi series in the spaces \(L_{1,A,B}\). (English. Ukrainian original) Zbl 1353.42004
Ukr. Math. J. 66, No. 2, 289-299 (2014); translation from Ukr. Mat. Zh. 66, No. 2, 259-268 (2014).
MSC:  42A16
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\textit{O. V. Motornaya} and \textit{V. P. Motornyi}, Ukr. Math. J. 66, No. 2, 289--299 (2014; Zbl 1353.42004); translation from Ukr. Mat. Zh. 66, No. 2, 259--268 (2014)
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Vértesi, Péter
On optimal interpolatory point systems. (English) Zbl 1298.41006
Pintz, János (ed.) et al., Number theory, analysis, and combinatorics. Proceedings of the Paul Turán memorial conference, Budapest, Hungary, August 22–26, 2011. Berlin: De Gruyter (ISBN 978-3-11-028242-9/ebook; 978-3-11-028237-5/hbk). De Gruyter Proceedings in Mathematics, 393-402 (2014).
MSC:  41A05 41A44 65D05
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\textit{P. Vértesi}, in: Number theory, analysis, and combinatorics. Proceedings of the Paul Turán memorial conference, Budapest, Hungary, August 22--26, 2011. Berlin: De Gruyter. 393--402 (2014; Zbl 1298.41006)
Shakirov, I. A.
The Lagrange trigonometric interpolation polynomial with the minimal norm considered as an operator from \(C_{2 \pi}\) to \(C_{2 \pi}\). (English. Russian original) Zbl 1209.42002
Russ. Math. 54, No. 10, 52-59 (2010); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2010, No. 10, 60-68 (2010).
Reviewer: Alexander Ulanovskii (Stavanger)
MSC:  42A15 65D32
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\textit{I. A. Shakirov}, Russ. Math. 54, No. 10, 52--59 (2010; Zbl 1209.42002); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2010, No. 10, 60--68 (2010)
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Popa, Emil C.
On some inequality for the constants of Landau and Lebesgue. (English) Zbl 1212.33004
Găvruţă, Paşcu (ed.) et al., Proceedings of the 12th symposium of mathematics and its applications, “Politehnica” University of Timişoara, Timişoara, Romania, November 5–7, 2009. Timişoara: Editura Politehnica. 159-161 (2010).
MSC:  33B15 26D20
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\textit{E. C. Popa}, in: Proceedings of the 12th symposium of mathematics and its applications, ``Politehnica'' University of Timişoara, Timişoara, Romania, November 5--7, 2009. Timişoara: Editura Politehnica. 159--161 (2010; Zbl 1212.33004)
Meaney, Christopher
Remarks on the Rademacher-Menshov theorem. (English) Zbl 1213.42122
McIntosh, Alan (ed.) et al., CMA/AMSI research symposium “Asymptotic geometric analysis, harmonic analysis, and related topics”. Proceedings of the symposium, Murramarang, Australia, February 21–24, 2006. Canberra: Australian National University, Centre for Mathematics and its Applications (ISBN 0-7315-5206-7/pbk). Proceedings of the Centre for Mathematics and its Applications, Australian National University 42, 100-110 (2007).
MSC:  42C15 46C05
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\textit{C. Meaney}, Proc. Cent. Math. Appl. Aust. Natl. Univ. 42, 100--110 (2007; Zbl 1213.42122)
Vinogradov, O. L.
Upper bounds of the Lebesgue constants of summation methods for Fourier-Jacobi series defined by a multiplier function. (English. Russian original) Zbl 1092.42018
J. Math. Sci., New York 120, No. 5, 1662-1671 (2004); translation from Zap. Nauchn. Semin. POMI 282, 34-50 (2001).
MSC:  42C10 42A24
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\textit{O. L. Vinogradov}, J. Math. Sci., New York 120, No. 5, 1662--1671 (2001; Zbl 1092.42018); translation from Zap. Nauchn. Semin. POMI 282, 34--50 (2001)
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Subbotin, Yu. N.; Telyakovskij, S. A.
Asymptotic behaviour of the Lebesgue constants of periodic interpolation splines with equidistant nodes. (English. Russian original) Zbl 0965.41006
Sb. Math. 191, No. 8, 1233-1242 (2000); translation from Mat. Sb. 191, No. 8, 131-140 (2000).
Reviewer: Manfred Tasche (Rostock)
MSC:  41A15 41A44 41A60
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\textit{Yu. N. Subbotin} and \textit{S. A. Telyakovskij}, Sb. Math. 191, No. 8, 1233--1242 (2000; Zbl 0965.41006); translation from Mat. Sb. 191, No. 8, 131--140 (2000)
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Vinogradov, O. L.
The limit of Lebesgue constants for summation methods of the Fourier-Legendre series defined by a multiplier function. (English. Russian original) Zbl 0997.42015
J. Math. Sci., New York 110, No. 5, 2944-2954 (2002); translation from Zap. Nauchn. Semin. POMI 262, 71-89 (1999).
MSC:  42C10 42A24
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\textit{O. L. Vinogradov}, J. Math. Sci., New York 110, No. 5, 1 (1999; Zbl 0997.42015); translation from Zap. Nauchn. Semin. POMI 262, 71--89 (1999)
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Subbotin, Yu. N.; Telyakovskij, S. A.
Exact values of relative widths of classes of differentiable functions. (English. Russian original) Zbl 0967.42001
Math. Notes 65, No. 6, 731-738 (1999); translation from Mat. Zametki 65, No. 6, 871-879 (1999).
Reviewer: Gerlind Plonka (Duisburg)
MSC:  42A10 41A46 42A05 41A30
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\textit{Yu. N. Subbotin} and \textit{S. A. Telyakovskij}, Math. Notes 65, No. 6, 731--738 (1999; Zbl 0967.42001); translation from Mat. Zametki 65, No. 6, 871--879 (1999)
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Berezhnoj, E. I.
Spaces of functions of generalized bounded variation. I.  Embedding theorems. Estimates for Lebesgue constants. (English. Russian original) Zbl 0944.46025
Sib. Math. J. 40, No. 5, 837-850 (1999); translation from Sib. Mat. Zh. 40, No. 5, 997-1011 (1999).
Reviewer: V.Grebenev (Novosibirsk)
MSC:  46E35 46E30 42A16 42A20 43A50
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\textit{E. I. Berezhnoj}, Sib. Math. J. 40, No. 5, 997--1011 (1999; Zbl 0944.46025); translation from Sib. Mat. Zh. 40, No. 5, 997--1011 (1999)
Dragnev, P.; Legg, D.; Townsend, D.
Generalized Bernstein-Erdős conjecture. (English) Zbl 0985.41013
Chui, Charles K. (ed.) et al., Approximation theory IX. Volume 1. Theoretical aspects. Proceedings of the 9th international conference, Nashville, TN, USA, January 3-6, 1998. Nashville, TN: Vanderbilt University Press. Innovations in Applied Mathematics. 119-126 (1998).
Reviewer: J.M.Rappoport
MSC:  41A44
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\textit{P. Dragnev} et al., in: Approximation theory IX. Volume 1. Theoretical aspects. Proceedings of the 9th international conference, Nashville, TN, USA, January 3--6, 1998. Nashville, TN: Vanderbilt University Press. 119--126 (1998; Zbl 0985.41013)

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