Suchergebnisse - "Approximation by arbitrary linear expressions"

Approximation Bounds for Model Reduction on Polynomially Mapped Manifolds: Approximation bounds for model reduction on polynomially mapped manifolds

Autoren: Patrick Buchfink Silke Glas Bernard Haasdonk

Quelle: Comptes Rendus. Mathématique, Vol 362, Iss G13, Pp 1881-1891 (2024)

Schlagwörter: polynomial mappings, polynomial \((n,p)\)-widths, Approximation by arbitrary nonlinear expressions, widths and entropy, polynomial $(n,p)$-widths, Numerical Analysis (math.NA), Abstract approximation theory (approximation in normed linear spaces and other abstract spaces), model order reduction, Approximation by arbitrary linear expressions, QA1-939, FOS: Mathematics, Model Order Reduction, Mathematics - Numerical Analysis, 41A45, 41A46, 41A65, 65L70, 65M15, 65N15, nonlinear manifolds, Mathematics

Dateibeschreibung: application/xml

Zugangs-URL: http://arxiv.org/abs/2312.00724
https://zbmath.org/7962937
https://doi.org/10.5802/crmath.632
https://doaj.org/article/f09aa9efd6ea49c6a9e07db702060c8f
https://research.utwente.nl/en/publications/b064ea0e-9f48-411c-bf6c-8e1ccd77d61f

New Time Domain Decomposition Methods for Parabolic Optimal Control Problems II: Neumann–Neumann Algorithms: New time domain decomposition methods for parabolic optimal control problems. II: Neumann-Neumann algorithms

Autoren: Martin J. Gander Liu-Di Lu

Quelle: SIAM Journal on Numerical Analysis. 62:2588-2610

Schlagwörter: Finite difference methods for boundary value problems involving PDEs, Controllability, parallel in time, time domain decomposition, 65M12, 65M55, 65Y05, Parallel numerical computation, parabolic optimal control problems, Numerical Analysis (math.NA), PDE constrained optimization (numerical aspects), 01 natural sciences, convergence analysis, Neumann-Neumann algorithm, Multigrid methods, domain decomposition for initial value and initial-boundary value problems involving PDEs, Optimization and Control (math.OC), Approximation by arbitrary linear expressions, Finite difference methods for initial value and initial-boundary value problems involving PDEs, 0103 physical sciences, FOS: Mathematics, Mathematics - Numerical Analysis, 0101 mathematics, Stability and convergence of numerical methods for initial value and initial-boundary value problems involving PDEs, Mathematics - Optimization and Control

Dateibeschreibung: application/xml

Zugangs-URL: http://arxiv.org/abs/2401.15522
https://zbmath.org/7957568
https://doi.org/10.1137/24m1634424

Some Bounds for the Expectations of Functions on Order Statistics and Their Applications: Some bounds for the expectations of functions on order statistics and their applications

Autoren: Arvydas Astrauskas

Quelle: Journal of Theoretical Probability. 36:1116-1147

Schlagwörter: weak law of large numbers, approximation of multidimensional integrals, Approximation by arbitrary linear expressions, Order statistics, empirical distribution functions, number of near-extremes, extremes, 0101 mathematics, functions on order statistics, 01 natural sciences, expectation

Dateibeschreibung: application/xml

On a class of weak Tchebycheff systems

Autoren: Costantini, P Lyche, T MANNI, CARLA et al.

Weitere Verfasser: Costantini, P Lyche, T MANNI, CARLA et al.

Quelle: Numerische Mathematik. 101:333-354

Schlagwörter: B-basis, 65D07, Tchebycheff Systems, Shape Parameters, Tchebycheff Systems, B-basis, Total Positivity, Shape Parameters, Multidimensional problems, 01 natural sciences, Total Positivity, Numerical computation using splines, weak Chebyshev systems, Spline approximation, Approximation by arbitrary linear expressions, 41A63, 0101 mathematics, Settore MAT/08 - ANALISI NUMERICA, normalized B-basis, 41A15, 41A45

Dateibeschreibung: application/xml; text/plain; application/pdf; STAMPA

Elfving's Theorem Revisited: Elfving's theorem revisited

Autoren: William J. Studden

Quelle: Journal of Statistical Planning and Inference. 130:85-94

Schlagwörter: Optimal statistical designs, Elfving set, Linear regression, mixed models, Approximations and expansions, Approximation by arbitrary linear expressions, 0502 economics and business, 05 social sciences, Foundations and philosophical topics in statistics, 0101 mathematics, Design of statistical experiments, 01 natural sciences

Dateibeschreibung: application/xml

Zugangs-URL: https://www.sciencedirect.com/science/article/abs/pii/S037837580400254X

Whitney constants and approximation of m-quasi-linear forms by m-linear forms: Whitney constants and approximation of \(m\)-quasi-linear forms by \(m\)-linear forms

Autoren: I. A. Vestfrid

Quelle: Journal of Approximation Theory. 132:204-211

Schlagwörter: Whitney constants, Polynomial approximation, Approximation by arbitrary linear expressions, Normed spaces, Quasi-linear forms, 0101 mathematics, Inequalities in approximation (Bernstein, Jackson, Nikol'skiĭ-type inequalities), best approximation, 01 natural sciences, Interpolation in approximation theory, moduli of smootness

Dateibeschreibung: application/xml

Zugangs-URL: https://www.sciencedirect.com/science/article/abs/pii/S0021904504002114#!
https://dialnet.unirioja.es/servlet/articulo?codigo=1107953
https://www.sciencedirect.com/science/article/pii/S0021904504002114
https://dblp.uni-trier.de/db/journals/jat/jat132.html#Vestfrid05

Polynomial Fitting for Edge Detection in Irregularly Sampled Signals and Images: Polynomial fitting for edge detection in irregularly sampled signals and images

Autoren: Jungho Yoon Anne Gelb Rick Archibald

Quelle: SIAM Journal on Numerical Analysis. 43:259-279

Schlagwörter: multivariate edge detection, Newton divided defferencing, nonuniform grids, minmod function, Approximation by arbitrary linear expressions, Multidimensional problems, Rate of convergence, degree of approximation, 0101 mathematics, 01 natural sciences

Dateibeschreibung: application/xml

Zugangs-URL: https://zbmath.org/2220003
https://doi.org/10.1137/s0036142903435259

Shift Generated Haar Spaces on Unbounded, Closed Domains in the Complex Plane: Shift generated Haar spaces on unbounded, closed domains in the complex plane

Autoren: Walter Hengartner Gerhard Opfer Maude Giasson

Quelle: Computational Methods and Function Theory. 3:151-164

Schlagwörter: shift generated, Zeros of polynomials, rational functions, and other analytic functions of one complex variable (e.g., zeros of functions with bounded Dirichlet integral), Approximation by arbitrary linear expressions, approximation on unbounded domains, complex Haar spaces, 0101 mathematics, 01 natural sciences

Dateibeschreibung: application/xml

Zugangs-URL: https://zbmath.org/2112933
https://doi.org/10.1007/bf03321032
https://link.springer.com/article/10.1007/BF03321032
https://link.springer.com/content/pdf/10.1007/BF03321032.pdf

Generation of the uniformly continuous functions: Generation of the uniformly continuous functions.

Autoren: M. Isabel Garrido Francisco Montalvo

Quelle: Topology and its Applications. 137:167-174

Schlagwörter: Uniform density, Lattices of continuous, differentiable or analytic functions, Real-valued functions in general topology, Approximation by arbitrary linear expressions, Geometry and Topology, 0101 mathematics, 01 natural sciences, uniform density, Uniform spaces, uniform continuity

Dateibeschreibung: application/xml

Zugangs-URL: https://zbmath.org/2056850
https://doi.org/10.1016/s0166-8641(03)00206-2
https://eprints.ucm.es/id/eprint/21377/
https://www.sciencedirect.com/science/article/pii/S0166864103002062

sharp estimates for deviations of linear approximation methods for periodic functions by linear combinations of moduli of continuity of different order: Sharp estimates for deviations of linear approximation methods for periodic functions by linear combinations of moduli of continuity of different order

Autoren: O. L. Vinogradov V. V. Zhuk

Quelle: Journal of Mathematical Sciences. 114(5):1628-1656

Schlagwörter: Spline approximation, uniform metric, Approximation by arbitrary linear expressions, approximation by splines, modulus of continuity, integral metric

Dateibeschreibung: application/xml

Zugangs-URL: https://zbmath.org/2097429
https://link.springer.com/article/10.1023/A:1022312828202

Sharp Estimates for Deviations of Linear Approximation Methods for Periodic Functions by Linear Combinations of Moduli of Continuity of Different Order: Sharp estimates for deviations of linear approximation methods for periodic functions by linear combinations of moduli of continuity of different order

Autoren: O. L. Vinogradov V. V. Zhuk

Quelle: Journal of Mathematical Sciences. 114:1628-1656

Schlagwörter: Spline approximation, uniform metric, Approximation by arbitrary linear expressions, approximation by splines, modulus of continuity, integral metric, 0101 mathematics, 01 natural sciences

Dateibeschreibung: application/xml

Zugangs-URL: https://zbmath.org/2097429
https://link.springer.com/article/10.1023/A:1022312828202

Best Uniform Approximation of a Family of Functions Continuous on a Compact Set: The best uniform approximation of a family of functions continuous on a compact set

Autoren: Yu. V. Gnatyuk

Quelle: Ukrainian Mathematical Journal. 54:1912-1919

Schlagwörter: Approximation by arbitrary linear expressions, linear finite-dimensional space, best uniform approximation, 0101 mathematics, 01 natural sciences, Uniqueness of best approximation, extremal element

Dateibeschreibung: application/xml

Zugangs-URL: https://link.springer.com/article/10.1023/A:1024056827744

best uniform approximation of a family of functions continuous on a compact set: The best uniform approximation of a family of functions continuous on a compact set

Autoren: Yu. V. Gnatyuk

Quelle: Ukrainian Mathematical Journal. 54(11):1912-1919

Schlagwörter: Approximation by arbitrary linear expressions, linear finite-dimensional space, best uniform approximation, Uniqueness of best approximation, extremal element

Dateibeschreibung: application/xml

Zugangs-URL: https://link.springer.com/article/10.1023/A:1024056827744

Best ${L^p}$-approximation of generalized biaxially symmetric potentials over Carath'eodory domains in ${C^N}$ having slow growth: Best \(L^p\)-approximation of generalized biaxially symmetric potentials over Carathéodory domains in \(C^N\) having slow growth

Autoren: Devendra Kumar

Quelle: Tamkang Journal of Mathematics. 33:223-232

Schlagwörter: Approximation by polynomials, Approximation by arbitrary linear expressions, 0101 mathematics, 01 natural sciences, Potentials and capacities, extremal length and related notions in higher dimensions

Dateibeschreibung: application/xml

Zugangs-URL: https://journals.math.tku.edu.tw/index.php/TKJM/article/download/324/305
https://zbmath.org/1895100
https://journals.math.tku.edu.tw/index.php/TKJM/article/view/324

Quasi-linear sequence transformations and their construction

Autoren: A. Lembarki

Quelle: Applied Numerical Mathematics. 41:481-497

Schlagwörter: Extrapolation to the limit, deferred corrections, Approximation by arbitrary linear expressions, quasi-linear sequence transformations, convergence acceleration, 0101 mathematics, 01 natural sciences

Dateibeschreibung: application/xml

Zugangs-URL: https://www.sciencedirect.com/science/article/pii/S0168927401001301
http://www.sciencedirect.com/science/article/pii/S0168927401001301

Approximation of Classes B r p,θ by Linear Methods and Best Approximations: Approximation of classes \(B_{p,\theta}^r\) by linear methods and best approximations

Autoren: A. S. Romanyuk

Quelle: Ukrainian Mathematical Journal. 54:825-838

Schlagwörter: Best approximation, Chebyshev systems, best approximation by trigonometric polynomials, linear approximation methods, Fourier series and coefficients in several variables, de la Vallée Poussin kernel, Approximation by arbitrary linear expressions, Trigonometric approximation, hyperbolic cross, 0101 mathematics, Function spaces arising in harmonic analysis, Sobolev spaces and other spaces of ''smooth' functions, embedding theorems, trace theorems, 01 natural sciences

Dateibeschreibung: application/xml

Zugangs-URL: https://zbmath.org/1837628
https://doi.org/10.1023/a:1021691615557
https://link.springer.com/content/pdf/10.1023/A:1021691615557.pdf
https://link.springer.com/article/10.1023/A%3A1021691615557

approximation of classes b p θ r by linear methods and best approximations: Approximation of classes \(B_{p,\theta}^r\) by linear methods and best approximations

Autoren: A. S. Romanyuk

Quelle: Ukrainian Mathematical Journal. 54(5):825-838

Schlagwörter: Best approximation, Chebyshev systems, best approximation by trigonometric polynomials, linear approximation methods, Fourier series and coefficients in several variables, de la Vallée Poussin kernel, Approximation by arbitrary linear expressions, Trigonometric approximation, hyperbolic cross, Function spaces arising in harmonic analysis, Sobolev spaces and other spaces of ''smooth' functions, embedding theorems, trace theorems

Dateibeschreibung: application/xml

Zugangs-URL: https://zbmath.org/1837628
https://doi.org/10.1023/a:1021691615557
https://link.springer.com/content/pdf/10.1023/A:1021691615557.pdf
https://link.springer.com/article/10.1023/A%3A1021691615557

Convergence Rates of Regularized Approximation Processes: Convergence rates of regularized approximation processes.

Autoren: Sen-Yen Shaw Hsiang Liu

Quelle: Journal of Approximation Theory. 115:21-43

Schlagwörter: local Abelian and Cesáro ergodic theorems, Mathematics(all), Numerical Analysis, n -times integrated solution family, Applied Mathematics, non-optimal convergence, Rate of convergence, degree of approximation, generalized Hille–Yosida operator, 01 natural sciences, Approximation by arbitrary linear expressions, tensor product semigroup, saturation property, n-times integrated semigroup, 0101 mathematics, regularized approximation process, K-functional, the Dunford–Pettis property, n-times integrated cosine function, Analysis, Grothendieck space

Dateibeschreibung: application/xml

On the Power of Standard Information for Weighted Approximation: On the power of standard information for weighted approximation

Autoren: Henryk Wozniakowski Grzegorz W. Wasilkowski

Quelle: Foundations of Computational Mathematics. 1:417-434

Schlagwörter: tractability, Algorithms for approximation of functions, weighted approximation, Approximation by arbitrary linear expressions, Multidimensional problems, multivariate function approximation, 0101 mathematics, 01 natural sciences

Dateibeschreibung: application/xml

Zugangs-URL: https://zbmath.org/1709154
https://doi.org/10.1007/s102080010016
https://link.springer.com/article/10.1007/s102080010016
https://dblp.uni-trier.de/db/journals/focm/focm1.html#Wasilkowski01

Application of basic hypergeometric series to stable analytic continuation

Autoren: Ismail Ali Vu Kim Tuan

Quelle: Journal of Computational and Applied Mathematics. 118:193-202

Schlagwörter: Signal theory (characterization, reconstruction, filtering, etc.), sampling theorem, Representations of entire functions of one complex variable by series and integrals, Applied Mathematics, basic hypergeometric series, Basic hypergeometric series, 01 natural sciences, regularization, analytic continuation, Computational Mathematics, General theory of numerical methods in complex analysis (potential theory, etc.), Analytic continuation, Basic hypergeometric functions in one variable, \({}_r\phi_s\), Approximation by arbitrary linear expressions, Regularization, 0101 mathematics, Sampling theorem, Analytic continuation of functions of one complex variable, Interpolation in approximation theory

Dateibeschreibung: application/xml

Zugangs-URL: https://www.sciencedirect.com/science/article/pii/S0377042700002776
https://ui.adsabs.harvard.edu/abs/2000JCoAM.118..193A/abstract
https://dialnet.unirioja.es/servlet/articulo?codigo=700104
https://www.sciencedirect.com/science/article/abs/pii/S0377042700002776