Siegel, Jonathan W.; Xu, Jinchao High-order approximation rates for shallow neural networks with cosine and \(\mathrm{ReLU}^k\) activation functions. (English) Zbl 07495639 Appl. Comput. Harmon. Anal. 58, 1-26 (2022). MSC: 41-XX 68-XX PDF BibTeX XML Cite \textit{J. W. Siegel} and \textit{J. Xu}, Appl. Comput. Harmon. Anal. 58, 1--26 (2022; Zbl 07495639) Full Text: DOI OpenURL
Zhang, Shuo An optimal piecewise cubic nonconforming finite element scheme for the planar biharmonic equation on general triangulations. (English) Zbl 1477.65251 Sci. China, Math. 64, No. 11, 2579-2602 (2021). MSC: 65N30 65N50 65N12 76E25 76W05 35Q35 PDF BibTeX XML Cite \textit{S. Zhang}, Sci. China, Math. 64, No. 11, 2579--2602 (2021; Zbl 1477.65251) Full Text: DOI arXiv OpenURL
Serghini, A. A construction of a bivariate \(C^2\) spline approximant with minimal degree on arbitrary triangulation. (English) Zbl 07331063 Math. Comput. Simul. 185, 358-371 (2021). MSC: 65-XX 62-XX PDF BibTeX XML Cite \textit{A. Serghini}, Math. Comput. Simul. 185, 358--371 (2021; Zbl 07331063) Full Text: DOI OpenURL
Xu, Jinchao Finite neuron method and convergence analysis. (English) Zbl 1473.65350 Commun. Comput. Phys. 28, No. 5, 1707-1745 (2020). MSC: 65N99 62M45 65N30 68T07 65N12 65N15 PDF BibTeX XML Cite \textit{J. Xu}, Commun. Comput. Phys. 28, No. 5, 1707--1745 (2020; Zbl 1473.65350) Full Text: DOI arXiv OpenURL
Huang, Xuehai Nonconforming virtual element method for \(2m\)th order partial differential equations in \(\mathbb{R}^n\) with \(m>n\). (English) Zbl 1468.65192 Calcolo 57, No. 4, Paper No. 42, 38 p. (2020). MSC: 65N30 65N12 65N15 65N22 PDF BibTeX XML Cite \textit{X. Huang}, Calcolo 57, No. 4, Paper No. 42, 38 p. (2020; Zbl 1468.65192) Full Text: DOI arXiv OpenURL
Chen, Long; Huang, Xuehai Nonconforming virtual element method for \(2m\) th order partial differential equations in \(\mathbb{R}^n\). (English) Zbl 1436.65175 Math. Comput. 89, No. 324, 1711-1744 (2020). MSC: 65N30 65N12 65N22 65N15 PDF BibTeX XML Cite \textit{L. Chen} and \textit{X. Huang}, Math. Comput. 89, No. 324, 1711--1744 (2020; Zbl 1436.65175) Full Text: DOI arXiv OpenURL
Wu, Shuonan; Xu, Jinchao Nonconforming finite element spaces for \(2m\)th order partial differential equations on \(\mathbb {R}^n\) simplicial grids when \(m=n+1\). (English) Zbl 1407.65304 Math. Comput. 88, No. 316, 531-551 (2019). Reviewer: Abdallah Bradji (Annaba) MSC: 65N30 65N12 65N15 35B25 35J30 PDF BibTeX XML Cite \textit{S. Wu} and \textit{J. Xu}, Math. Comput. 88, No. 316, 531--551 (2019; Zbl 1407.65304) Full Text: DOI arXiv OpenURL
Gallistl, Dietmar Stable splitting of polyharmonic operators by generalized Stokes systems. (English) Zbl 1369.31012 Math. Comput. 86, No. 308, 2555-2577 (2017). MSC: 31B30 31B35 35J30 65N30 PDF BibTeX XML Cite \textit{D. Gallistl}, Math. Comput. 86, No. 308, 2555--2577 (2017; Zbl 1369.31012) Full Text: DOI Link OpenURL
Baidakova, N. V. Lower estimates for the error of approximation of derivatives for composite finite elements with smoothness property. (English. Russian original) Zbl 1326.41041 Proc. Steklov Inst. Math. 288, Suppl. 1, S29-S39 (2015); translation from Tr. Inst. Mat. Mekh. (Ekaterinburg) 20, No. 1, 32-42 (2014). Reviewer: H. P. Dikshit (Bhopal) MSC: 41A65 65D07 65N15 65N30 PDF BibTeX XML Cite \textit{N. V. Baidakova}, Proc. Steklov Inst. Math. 288, S29--S39 (2015; Zbl 1326.41041); translation from Tr. Inst. Mat. Mekh. (Ekaterinburg) 20, No. 1, 32--42 (2014) Full Text: DOI OpenURL
Sergienko, I. V.; Lytvyn, O. M.; Lytvyn, O. O.; Denisova, O. I. Explicit formulas for interpolating splines of degree 5 on the triangle. (English. Russian original) Zbl 1315.65013 Cybern. Syst. Anal. 50, No. 5, 670-678 (2014); translation from Kibern. Sist. Anal. No. 5, 25-33 (2014). Reviewer: Nicoleta Breaz (Alba Iulia) MSC: 65D07 65D05 65N30 35J40 PDF BibTeX XML Cite \textit{I. V. Sergienko} et al., Cybern. Syst. Anal. 50, No. 5, 670--678 (2014; Zbl 1315.65013); translation from Kibern. Sist. Anal. No. 5, 25--33 (2014) Full Text: DOI OpenURL
Baidakova, N. V. Influence of smoothness on the error of approximation of derivatives under local interpolation on triangulations. (English. Russian original) Zbl 1298.41001 Proc. Steklov Inst. Math. 277, Suppl. 1, S33-S47 (2012); translation from Tr. Inst. Mat. Mekh. (Ekaterinburg) 17, No. 3, 83-97 (2011). Reviewer: Antonio López-Carmona (Granada) MSC: 41A05 65D05 PDF BibTeX XML Cite \textit{N. V. Baidakova}, Proc. Steklov Inst. Math. 277, S33--S47 (2012; Zbl 1298.41001); translation from Tr. Inst. Mat. Mekh. (Ekaterinburg) 17, No. 3, 83--97 (2011) Full Text: DOI OpenURL
Papanicolopulos, S.-A.; Zervos, A. A method for creating a class of triangular \(C^{1}\) finite elements. (English) Zbl 1242.74147 Int. J. Numer. Methods Eng. 89, No. 11, 1437-1450 (2012). MSC: 74S05 74B99 PDF BibTeX XML Cite \textit{S. A. Papanicolopulos} and \textit{A. Zervos}, Int. J. Numer. Methods Eng. 89, No. 11, 1437--1450 (2012; Zbl 1242.74147) Full Text: DOI OpenURL
Brenner, Susanne C.; Sung, Li-Yeng; Zhang, Yi Finite element methods for the displacement obstacle problem of clamped plates. (English) Zbl 1250.74023 Math. Comput. 81, No. 279, 1247-1262 (2012). Reviewer: Jan Lovíšek (Bratislava) MSC: 74S05 74M15 74K20 65N30 65N12 49J40 PDF BibTeX XML Cite \textit{S. C. Brenner} et al., Math. Comput. 81, No. 279, 1247--1262 (2012; Zbl 1250.74023) Full Text: DOI OpenURL
Baidakova, N. V. On some interpolation third-degree polynomials on a three-dimensional simplex. (English. Russian original) Zbl 1312.41003 Proc. Steklov Inst. Math. 264, Suppl. 1, S44-S59 (2009); translation from Tr. Inst. Mat. Mekh. (Ekaterinburg) 14, No. 3, 43-57 (2008). MSC: 41A05 41A63 65D05 PDF BibTeX XML Cite \textit{N. V. Baidakova}, Proc. Steklov Inst. Math. 264, S44--S59 (2009; Zbl 1312.41003); translation from Tr. Inst. Mat. Mekh. (Ekaterinburg) 14, No. 3, 43--57 (2008) Full Text: DOI OpenURL
Wang, Ren-Hong; Lang, Feng-Gong Special multivariate quadratic spline space. (English) Zbl 1165.65314 Math. Comput. Modelling 49, No. 3-4, 760-769 (2009). MSC: 65D07 41A15 41A65 PDF BibTeX XML Cite \textit{R.-H. Wang} and \textit{F.-G. Lang}, Math. Comput. Modelling 49, No. 3--4, 760--769 (2009; Zbl 1165.65314) Full Text: DOI OpenURL
Brou, J. C. Koua; Le Méhauté, A. \(C^r\) rational splines over a triangulation. (English) Zbl 1167.41002 J. Math. Anal. Appl. 356, No. 2, 429-440 (2009). Reviewer: Francisco Pérez Acosta (La Laguna) MSC: 41A15 41A20 41A29 65D07 PDF BibTeX XML Cite \textit{J. C. K. Brou} and \textit{A. Le Méhauté}, J. Math. Anal. Appl. 356, No. 2, 429--440 (2009; Zbl 1167.41002) Full Text: DOI OpenURL
Lai, Yi-Sheng; Wang, Ren-Hong The Nöther and Riemann-Roch type theorems for piecewise algebraic curve. (English) Zbl 1115.14054 Sci. China, Ser. A 50, No. 2, 165-182 (2007). MSC: 14Q10 14H50 41A15 41A46 65D07 65D10 PDF BibTeX XML Cite \textit{Y.-S. Lai} and \textit{R.-H. Wang}, Sci. China, Ser. A 50, No. 2, 165--182 (2007; Zbl 1115.14054) Full Text: DOI OpenURL
Mazroui, A.; Sbibih, D.; Tijini, A. Recursive computation of bivariate Hermite spline interpolants. (English) Zbl 1127.65012 Appl. Numer. Math. 57, No. 8, 962-973 (2007). Reviewer: Aurelian Bejancu (Safat) MSC: 65D07 65D05 PDF BibTeX XML Cite \textit{A. Mazroui} et al., Appl. Numer. Math. 57, No. 8, 962--973 (2007; Zbl 1127.65012) Full Text: DOI OpenURL
Schumaker, Larry L.; Sorokina, Tatyana Smooth macro-elements on Powell-Sabin-12 splits. (English) Zbl 1094.65012 Math. Comput. 75, No. 254, 711-726 (2006). Reviewer: Pavol Chocholatý (Bratislava) MSC: 65D05 65D07 41A63 65N30 41A15 PDF BibTeX XML Cite \textit{L. L. Schumaker} and \textit{T. Sorokina}, Math. Comput. 75, No. 254, 711--726 (2006; Zbl 1094.65012) Full Text: DOI OpenURL
Davydov, O.; Nürnberger, G.; Zeilfelder, F. Bivariate spline interpolation with optimal approximation order. (English) Zbl 1004.41005 Constructive Approximation 17, No. 2, 181-208 (2001). Reviewer: Jesus Illán González (Vigo) MSC: 41A25 41A63 41A05 41A15 65D05 65D07 PDF BibTeX XML Cite \textit{O. Davydov} et al., Constr. Approx. 17, No. 2, 181--208 (2001; Zbl 1004.41005) Full Text: DOI Link OpenURL
Nürnberger, G.; Zeilfelder, F. Developments in bivarite spline interpolation. (English) Zbl 0960.41006 J. Comput. Appl. Math. 121, No. 1-2, 125-152 (2000). Reviewer: E.Deeba (Houston) MSC: 41A15 41A05 PDF BibTeX XML Cite \textit{G. Nürnberger} and \textit{F. Zeilfelder}, J. Comput. Appl. Math. 121, No. 1--2, 125--152 (2000; Zbl 0960.41006) Full Text: DOI OpenURL
De Marchi, S. On computing derivatives for \(C^ 1\) interpolating schemes: An optimization. (English) Zbl 0889.65012 Computing 60, No. 1, 29-53 (1998). Reviewer: A.López-Carmona (Granada) MSC: 65D25 65D05 PDF BibTeX XML Cite \textit{S. De Marchi}, Computing 60, No. 1, 29--53 (1998; Zbl 0889.65012) Full Text: DOI OpenURL
Ženíšek, Alexander; Vanmaele, Michèle Applicability of the Bramble-Hilbert lemma in interpolation problems of narrow quadrilateral isoparametric finite elements. (English) Zbl 0847.41003 J. Comput. Appl. Math. 63, No. 1-3, 109-122 (1995). MSC: 41A05 PDF BibTeX XML Cite \textit{A. Ženíšek} and \textit{M. Vanmaele}, J. Comput. Appl. Math. 63, No. 1--3, 109--122 (1995; Zbl 0847.41003) Full Text: DOI OpenURL
Chui, C. K.; Hong, D.; Jia, R. Q. Stability of optimal-order approximation by bivariate splines over arbitrary triangulations. (English) Zbl 0841.41017 Trans. Am. Math. Soc. 347, No. 9, 3301-3318 (1995). MSC: 41A25 41A63 41A05 41A15 65D07 PDF BibTeX XML Cite \textit{C. K. Chui} et al., Trans. Am. Math. Soc. 347, No. 9, 3301--3318 (1995; Zbl 0841.41017) Full Text: DOI OpenURL
Zhan, Yinwei A bivariate \(C^ 3\) interpolation scheme. (English) Zbl 0845.41007 J. Comput. Appl. Math. 61, No. 2, 179-188 (1995). Reviewer: M.Lenard (Kuwait) MSC: 41A15 41A63 PDF BibTeX XML Cite \textit{Y. Zhan}, J. Comput. Appl. Math. 61, No. 2, 179--188 (1995; Zbl 0845.41007) Full Text: DOI OpenURL
Křížková, Jitka Special exact curved finite elements. (English) Zbl 0760.65008 Appl. Math., Praha 36, No. 2, 81-95 (1991). Reviewer: J.L.Fernández Muñiz (La Habana) MSC: 65D15 65N30 74A55 74M15 74S05 PDF BibTeX XML Cite \textit{J. Křížková}, Appl. Math., Praha 36, No. 2, 81--95 (1991; Zbl 0760.65008) Full Text: EuDML OpenURL
Chui, Charles K.; Lai, Mingjun On bivariate super vertex splines. (English) Zbl 0726.41012 Constructive Approximation 6, No. 4, 399-419 (1990). Reviewer: J.Prestin (Rostock) MSC: 41A15 41A25 41A63 PDF BibTeX XML Cite \textit{C. K. Chui} and \textit{M. Lai}, Constr. Approx. 6, No. 4, 399--419 (1990; Zbl 0726.41012) Full Text: DOI OpenURL
Meyling, R. H. J. Gmelig; Pfluger, P. R. Smooth interpolation to scattered data by bivariate piecewise polynomials of odd degree. (English) Zbl 0708.65012 Comput. Aided Geom. Des. 7, No. 5, 439-458 (1990). Reviewer: G.Nürnberger MSC: 65D07 65D05 41A15 41A63 PDF BibTeX XML Cite \textit{R. H. J. G. Meyling} and \textit{P. R. Pfluger}, Comput. Aided Geom. Des. 7, No. 5, 439--458 (1990; Zbl 0708.65012) Full Text: DOI OpenURL
Chui, Charles K.; Lai, Ming-Jun Multivariate vertex splines and finite elements. (English) Zbl 0702.41017 J. Approximation Theory 60, No. 3, 245-343 (1990). Reviewer: L.Leindler MSC: 41A15 PDF BibTeX XML Cite \textit{C. K. Chui} and \textit{M.-J. Lai}, J. Approx. Theory 60, No. 3, 245--343 (1990; Zbl 0702.41017) Full Text: DOI OpenURL
Lorente, J.; Ramírez, V. An application of interpolation systems to the finite element method. (English) Zbl 0705.65006 Appl. Math. Lett. 2, No. 3, 247-250 (1989). MSC: 65D05 41A05 41A63 65N30 PDF BibTeX XML Cite \textit{J. Lorente} and \textit{V. Ramírez}, Appl. Math. Lett. 2, No. 3, 247--250 (1989; Zbl 0705.65006) Full Text: DOI OpenURL
Feistauer, Miloslav On the finite element approximation of functions with noninteger derivatives. (English) Zbl 0668.65008 Numer. Funct. Anal. Optimization 10, No. 1-2, 91-110 (1989). Reviewer: G.Stoyan MSC: 65D15 41A30 PDF BibTeX XML Cite \textit{M. Feistauer}, Numer. Funct. Anal. Optim. 10, No. 1--2, 91--110 (1989; Zbl 0668.65008) Full Text: DOI OpenURL
de Boor, C.; Höllig, K. Approximation power of smooth bivariate pp functions. (English) Zbl 0616.41010 Math. Z. 197, No. 3, 343-363 (1988). MSC: 41A15 41A63 41A25 PDF BibTeX XML Cite \textit{C. de Boor} and \textit{K. Höllig}, Math. Z. 197, No. 3, 343--363 (1988; Zbl 0616.41010) Full Text: DOI EuDML OpenURL
Alfeld, Peter; Schumaker, L. L. The dimension of bivariate spline spaces of smoothness r for degree \(d\geq 4r+1\). (English) Zbl 0646.41008 Constructive Approximation 3, 189-197 (1987). Reviewer: C.Simerská MSC: 41A15 41A63 65D07 PDF BibTeX XML Cite \textit{P. Alfeld} and \textit{L. L. Schumaker}, Constr. Approx. 3, 189--197 (1987; Zbl 0646.41008) Full Text: DOI OpenURL
Grandine, Thomas A. An iterative method for computing multivariate \(C^ 1\) piecewise polynomial interpolants. (English) Zbl 0637.65008 Comput. Aided Geom. Des. 4, 307-319 (1987). Reviewer: A.López-Carmona MSC: 65D07 65D05 41A15 41A63 PDF BibTeX XML Cite \textit{T. A. Grandine}, Comput. Aided Geom. Des. 4, 307--319 (1987; Zbl 0637.65008) Full Text: DOI OpenURL
Barnhill, R. E. Surfaces in computer aided geometric design: A survey with new results. (English) Zbl 0597.65001 Comput. Aided Geom. Des. 2, 1-17 (1985). Reviewer: G.Farin MSC: 65D07 65S05 65-02 41A15 41A63 PDF BibTeX XML Cite \textit{R. E. Barnhill}, Comput. Aided Geom. Des. 2, 1--17 (1985; Zbl 0597.65001) Full Text: DOI OpenURL
Sablonniere, Paul Composite finite elements of class \(C^ k\). (English) Zbl 0587.41004 J. Comput. Appl. Math. 12/13, 541-550 (1985). MSC: 41A05 41A10 41A30 PDF BibTeX XML Cite \textit{P. Sablonniere}, J. Comput. Appl. Math. 12/13, 541--550 (1985; Zbl 0587.41004) Full Text: DOI OpenURL
Alfeld, Peter A bivariate \(C^ 2\) Clough-Tocher scheme. (English) Zbl 0597.65005 Comput. Aided Geom. Des. 1, 257-267 (1984). Reviewer: V.V.Vasil’ev MSC: 65D05 41A05 41A63 PDF BibTeX XML Cite \textit{P. Alfeld}, Comput. Aided Geom. Des. 1, 257--267 (1984; Zbl 0597.65005) Full Text: DOI OpenURL
Zenisek, Alexander Curved triangular finite \(C^ m\)-elements. (English) Zbl 0404.35041 Apl. Mat. 23, 346-377 (1978). MSC: 35J40 65M99 65N99 35A35 65N30 PDF BibTeX XML Cite \textit{A. Zenisek}, Apl. Mat. 23, 346--377 (1978; Zbl 0404.35041) Full Text: EuDML OpenURL
Wynn, P. The calculus of finite differences over certain systems of numbers. (English) Zbl 0379.65005 Calcolo 14, 303-341 (1978). MSC: 65D05 65D25 65D30 41A05 PDF BibTeX XML Cite \textit{P. Wynn}, Calcolo 14, 303--341 (1978; Zbl 0379.65005) Full Text: DOI OpenURL
Ciarlet, Philippe G. Interpolation error estimates for the reduced Hsieh-Clough-Tocher triangle. (English) Zbl 0378.65010 Math. Comput. 32, 335-344 (1978). MSC: 65D05 65N15 65N30 41A25 PDF BibTeX XML Cite \textit{P. G. Ciarlet}, Math. Comput. 32, 335--344 (1978; Zbl 0378.65010) Full Text: DOI OpenURL
Mansfield, Lois Interpolation to boundary data in tetrahedra with applications to compatible finite elements. (English) Zbl 0361.41002 J. Math. Anal. Appl. 56, 137-164 (1976). MSC: 41A05 41A63 PDF BibTeX XML Cite \textit{L. Mansfield}, J. Math. Anal. Appl. 56, 137--164 (1976; Zbl 0361.41002) Full Text: DOI OpenURL
Fortin, M. Utilisation de la méthode des éléments finis en mécanique des fluides. I. (French) Zbl 0351.76030 Calcolo 12(1975), 405-441 (1976). MSC: 76D05 65Z05 PDF BibTeX XML Cite \textit{M. Fortin}, Calcolo 12, 405--441 (1976; Zbl 0351.76030) Full Text: DOI OpenURL
Zenisek, Alexander A general theorem on triangular finite \(C^(m)\)-elements. (English) Zbl 0321.41003 Rev. Franc. Automat. Inform. Rech. Operat. 8, Analyse numer., R-2, 119-127 (1974). MSC: 41A10 65Z05 PDF BibTeX XML Cite \textit{A. Zenisek}, Rev. Franc. Automat. Inform. Rech. Operat., R 8, No. 2, 119--127 (1974; Zbl 0321.41003) Full Text: EuDML OpenURL
Birkhoff, Garrett; Mansfield, Lois Compatible triangular finite-elements. (English) Zbl 0284.35021 J. Math. Anal. Appl. 47, 531-553 (1974). MSC: 35J30 35A99 35A35 65N12 PDF BibTeX XML Cite \textit{G. Birkhoff} and \textit{L. Mansfield}, J. Math. Anal. Appl. 47, 531--553 (1974; Zbl 0284.35021) Full Text: DOI OpenURL
Mansfield, Lois Higher order compatible triangular finite elements. (English) Zbl 0265.65011 Numer. Math. 22, 89-97 (1974). MSC: 65D10 41A65 PDF BibTeX XML Cite \textit{L. Mansfield}, Numer. Math. 22, 89--97 (1974; Zbl 0265.65011) Full Text: DOI EuDML OpenURL
Taylor, C.; Hood, P. A numerical solution of the Navier-Stokes equations using the finite element technique. (English) Zbl 0328.76020 Comput. Fluids 1, 73-100 (1973). MSC: 76D05 65M06 65N06 PDF BibTeX XML Cite \textit{C. Taylor} and \textit{P. Hood}, Comput. Fluids 1, 73--100 (1973; Zbl 0328.76020) Full Text: DOI OpenURL
Koukal, Stanislav Piecewise polynomial interpolations in he finite element method. (English) Zbl 0305.65070 Apl. Mat. 18, 146-160 (1973). MSC: 65N30 PDF BibTeX XML Cite \textit{S. Koukal}, Apl. Mat. 18, 146--160 (1973; Zbl 0305.65070) Full Text: EuDML OpenURL
Zenisek, Alexander Polynomial approximation on tetrahedrons in the finite element method. (English) Zbl 0279.41005 J. Approximation Theory 7, 334-351 (1973). MSC: 41A10 41A05 PDF BibTeX XML Cite \textit{A. Zenisek}, J. Approx. Theory 7, 334--351 (1973; Zbl 0279.41005) Full Text: DOI OpenURL
Babuška, Ivo; Rosenzweig, Michael B. A finite element scheme for domains with corners. (English) Zbl 0252.65084 Numer. Math. 20, 1-21 (1972). MSC: 65N30 35J20 35J25 PDF BibTeX XML Cite \textit{I. Babuška} and \textit{M. B. Rosenzweig}, Numer. Math. 20, 1--21 (1972; Zbl 0252.65084) Full Text: DOI EuDML OpenURL
Ciarlet, P. G.; Raviart, P. A. General Lagrange and Hermite interpolation in \(R^n\) with applications to finite element methods. (English) Zbl 0243.41004 Arch. Ration. Mech. Anal. 46, 177-199 (1972). MSC: 41A05 41A63 65L10 PDF BibTeX XML Cite \textit{P. G. Ciarlet} and \textit{P. A. Raviart}, Arch. Ration. Mech. Anal. 46, 177--199 (1972; Zbl 0243.41004) Full Text: DOI OpenURL
Melkes, Frantisek Reduced piecewise bivariate Hermite interpolations. (English) Zbl 0227.65007 Numer. Math. 19, 326-340 (1972). MSC: 65D05 PDF BibTeX XML Cite \textit{F. Melkes}, Numer. Math. 19, 326--340 (1972; Zbl 0227.65007) Full Text: DOI EuDML OpenURL
Bramble, James H.; Zlámal, Miloš Triangular elements in the finite element method. (English) Zbl 0226.65073 Math. Comput. 24(1970), 809-820 (1971). MSC: 65N30 65M99 65N99 35J25 PDF BibTeX XML Cite \textit{J. H. Bramble} and \textit{M. Zlámal}, Math. Comput. 24, 809--820 (1971; Zbl 0226.65073) Full Text: DOI OpenURL