Found 63 Documents (Results 1–63)
How much faster does the best polynomial approximation converge than Legendre projection? (English) Zbl 1475.41007
Reviewer: Paola Lamberti (Torino)
Optimal decay rates on the asymptotics of orthogonal polynomial expansions for functions of limited regularities. (English) Zbl 1511.42024
Reviewer: Alexei Lukashov (Moskva)
Explicit error estimates for spline approximation of arbitrary smoothness in isogeometric analysis. (English) Zbl 1483.65026
Reviewer: Deepesh Toshniwal (Delft)
Convergence rate analysis for the higher order power method in best rank one approximations of tensors. (English) Zbl 1404.65035
Quadratic convergence of approximations by CCC-Schoenberg operators. (English) Zbl 1371.41010
Reviewer: Francisco Pérez Acosta (La Laguna)
Optimized Schwarz waveform relaxation for advection reaction diffusion equations in two dimensions. (English) Zbl 1356.65225
Reviewer: Marius Ghergu (Dublin)
A note on interpolation, best approximation, and the saturation property. (English) Zbl 1332.65155
Reviewer: Costică Mustăţa (Cluj-Napoca)
Quasi extended Chebyshev spaces and weight functions. (English) Zbl 1226.65011
Reviewer: Ioana Tascu (Baia Mare)
Finite element approximation of the Sobolev constant. (English) Zbl 1208.65162
Reviewer: Manfred Tasche (Rostock)
Error bounds for approximation in Chebyshev points. (English) Zbl 1201.65040
Reviewer: Denis Sidorov (Irkutsk)
Median spheres: Theory, algorithms, applications. (English) Zbl 1202.65018
Reviewer: Nicoleta Breaz (Alba Iulia)
Shape preserving properties of generalized Bernstein operators on extended Chebyshev spaces. (English) Zbl 1184.41011
Reviewer: Vijay Gupta (New Delhi)
Hölder estimates for Green’s functions on convex polyhedral domains and their applications to finite element methods. (English) Zbl 1165.65068
Reviewer: H. P. Dikshit (Bhopal)
Finite termination of a dual Newton method for convex best \(C^1\) interpolation and smoothing. (English) Zbl 1081.65015
Reviewer: Aurelian Bejancu (Safat)
Convergence of Newton’s method for convex best interpolation. (English) Zbl 0970.65009
Reviewer: Jacek Gilewicz (Marseille)
Nonlinear functionals of wavelet expansions – adaptive reconstruction and fast evaluation. (English) Zbl 0962.65118
Reviewer: Karel Najzar (Praha)
Minimally supported error representations and approximation by the constants. (English) Zbl 0954.41003
Reviewer: G.D.Dikshit (Auckland)
Integral error formulae for the scale of mean value interpolations which includes Kergin and Hakopian interpolation. (English) Zbl 0892.41002
Reviewer: E.Deeba (Houston)
Polynomials on the Cauchy circle. (English) Zbl 0821.65009
Reviewer: A.Martínez Finkelshtein (Almeria)
Exact bounds for the uniform approximation by cardinal spline interpolants. (English) Zbl 0812.41007
Reviewer: E.Quak (Schwerte)
MSC:
41A15
The Chebyshev solution of certain matrix equations. (English) Zbl 0708.65044
Reviewer: Horst Hollatz (Magdeburg)
A continuous selection of the metric projection in matrix spaces. Addendum. (English) Zbl 0703.41034
Asymptotic near optimality of the bisection method. (English) Zbl 0699.65033
Reviewer: G.Merz
MSC:
65H05
Minimum relative error approximations for 1/t. (English) Zbl 0658.65011
Reviewer: D.Braess
On orthogonal linear \(\ell_1\) approximation. (English) Zbl 0633.65010
Reviewer: G.Nürnberger
Strict Chebyshev approximation for general systems of linear equations. (English) Zbl 0632.65042
Reviewer: Sun Yongsheng
The h, p and h-p versions of the finite element method in 1 dimension. I. The error analysis of the p-version. (English) Zbl 0614.65088
Reviewer: C.-I.Gheorghiu
On a class of Chebyshev approximation problems which arise in connection with a conjugate gradient type method. (English) Zbl 0611.65016
Reviewer: S.Filippi
Eine Fehlerabschätzung für positive Quadraturformeln. (An error estimate for positives quadrature formulas). (English) Zbl 0568.41027
MSC:
41A55
Estimations des erreurs de meilleure approximation polynomiale et d’interpolation de Lagrange dans les espaces de Sobolev d’ordre non entier. (Estimation of the best polynomial approximation error and the Lagrange interpolation error in fractional-order Sobolev spaces). (French) Zbl 0587.41018
Best constants occurring with modulus of continuity in the error estimate for spline interpolants of odd degree on equidistant grids. (English) Zbl 0523.41009
Solving complex approximation problems by semiinfinite-finite optimization techniques: A study on convergence. (English) Zbl 0517.65005
Strong uniqueness and second order convergence in nonlinear discrete approximation. (English) Zbl 0486.65008
DCR 2: An improved algorithm for \(\ell_\infty\) rational approximation on intervals. (English) Zbl 0427.65009
Fehleranalyse für die Gauß-Elimination zur Berechnung der Lösung minimaler Länge. (German) Zbl 0425.65024
Zur Stetigkeit rationaler T-Approximationen über unbeschränkten Intervallen. (German) Zbl 0353.65006
Numerische Methoden zur Behandlung einiger Problemklassen der nichtlinearen Tschebyscheff-Approximation mit Nebenbedingungen. (German) Zbl 0336.65007
Eine Klasse von Verfahren zur Ermittlung bester nichtlinearer Tschebyscheff-Approximationen. (German) Zbl 0333.65005
Kriterien erster und zweiter Ordnung für lokal beste Approximationen bei Problemen mit Nebenbedingungen. (German) Zbl 0303.41021
Eine Iterationsmethode zur mehrdimensionalen gleichmäßigen Approximation bei gegebener Näherung. (German) Zbl 0269.65009
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