## Found 3,134 Documents (Results 1–100)

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### Approximating the Gaussian as a sum of exponentials and its applications to the fast Gauss transform. (English)Zbl 07493155

MSC:  30E10 41A20 65F30 65E05 65Y20
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### The Fourier type expansions on tubes. (English)Zbl 07484149

MSC:  32A30 32A35 41A20
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### Localization of singular points of meromorphic functions based on interpolation by rational functions. (English)Zbl 07525865

MSC:  65E05 41A20
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### Point-wise estimates for the derivative of algebraic polynomials. (English)Zbl 07509986

MSC:  30E10 41A20
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### Rational Pál type $$(0,1;0)$$-interpolation and quadrature formula with Chebyshev-Markov fractions. (English)Zbl 07487539

MSC:  33C45 33C47 41A20
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### Convergence of two-point Padé approximants to piecewise holomorphic functions. (English. Russian original)Zbl 07480684

Sb. Math. 212, No. 11, 1626-1659 (2021); translation from Mat. Sb. 212, No. 11, 128-164 (2021).
MSC:  41A21 41A20
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### A new mathematical formula to link near equilibrium relaxation kinetics and conformational selection steps in enzymatic reactions. (English)Zbl 1480.92094

MSC:  92C45 41A20 34C20
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### A rational RBF interpolation with conditionally positive definite kernels. (English)Zbl 07420355

MSC:  65D12 41A20 41A05
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### The AAAtrig algorithm for rational approximation of periodic functions. (English)Zbl 07411924

MSC:  65D15 41A20
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### On rational approximation to $${|x|^\alpha}$$ ($$1 \le \alpha < 2$$) at the improved tangent nodes. (Chinese. English summary)Zbl 07404044

MSC:  41A20 41A05 41A25
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### Rational approximation to $${|x|^\alpha}$$ at the Chebyshev nodes. (Chinese. English summary)Zbl 07403914

MSC:  41A20 41A25
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### The influence of jumps on the sinc interpolant, and ways to overcome it. (English)Zbl 1474.41002

Baumann, Gerd (ed.), New sinc methods of numerical analysis. Festschrift in honor of Frank Stenger’s 80th birthday. Based on the presentations at the symposium, Rhodes, Greece, September 13–18, 2018. Cham: Birkhäuser. Trends Math., 323-339 (2021).
MSC:  41A05 41A20 65D05
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### Algorithms for the rational approximation of matrix-valued functions. (English)Zbl 07395803

MSC:  65D15 41A20
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### Iterative rational least squares fitting. (English)Zbl 1481.65036

MSC:  65D10 41A20
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### Rational minimax iterations for computing the matrix $$p$$th root. (English)Zbl 07387070

MSC:  65F30 65F60 41A20 49K35
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### An algorithm for best rational approximation based on barycentric rational interpolation. (English)Zbl 1473.65015

MSC:  65D15 41A20
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### Rational approximations of Lipschitz functions from the Hardy class on the line. (English)Zbl 1472.41007

MSC:  41A20 41A25
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### Construction of feedforward neural networks with simple architectures and approximation abilities. (English)Zbl 07376637

MSC:  68T07 41A20 41A25
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### Approximation by simple partial fractions in unbounded domains. (English. Russian original)Zbl 1475.30087

Sb. Math. 212, No. 4, 449-474 (2021); translation from Mat. Sb. 212, No. 4, 3-28 (2021).
MSC:  30E10 41A20
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### Functions of rational Krylov space matrices and their decay properties. (English)Zbl 1470.65081

MSC:  65F60 65F25 41A20
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### On Baker’s patchwork conjecture for diagonal Padé approximants. (English)Zbl 1467.41007

MSC:  41A21 30E10 41A20
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### Convergence rates of a family of barycentric rational Hermite interpolants and their derivatives. (English)Zbl 07354988

MSC:  65D05 41A05 41A20
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### A rational approximation scheme for computing Mittag-Leffler function with discrete elliptic operator as input. (English)Zbl 1469.65037

MSC:  65D05 65Y05 41A20
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### A simple rational approximation to the generalized elliptic integral of the first kind. (English)Zbl 1467.33022

MSC:  33E05 41A20
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### Exponential node clustering at singularities for rational approximation, quadrature, and PDEs. (English)Zbl 1467.65021

MSC:  65D32 41A20 65N35
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### Algorithms for simultaneous Hermite-Padé approximations. (English)Zbl 1452.41007

MSC:  41A21 41A20 65D15
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### Minimal solutions of the rational interpolation problem. (English)Zbl 1472.41006

MSC:  41A20 11Y50 13D02
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### A convergent family of linear Hermite barycentric rational interpolants. (English)Zbl 1474.41004

MSC:  41A05 41A20 41A25
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### Numerical conformal mapping with rational functions. (English)Zbl 1461.30031

MSC:  30C30 41A20 65E05
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### A criterion for uniform approximability of individual functions by solutions of second-order homogeneous elliptic equations with constant complex coefficients. (English. Russian original)Zbl 1458.35017

Sb. Math. 211, No. 9, 1267-1309 (2020); translation from Mat. Sb. 211, No. 9, 60-104 (2020).
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### On barycentric interpolation. III. On convergent type processes. (English)Zbl 1474.41005

MSC:  41A05 41A20
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### Rational approximation of Muntz in Orlicz spaces. (Chinese. English summary)Zbl 1463.41020

MSC:  41A20 41A65

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### A new approach to Newton-type polynomial interpolation with parameters. (English)Zbl 1459.65021

MSC:  65D05 41A20
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### Extrapolation and rational approximation. The works of the main contributors. (English)Zbl 1477.65006

Cham: Springer (ISBN 978-3-030-58417-7/hbk; 978-3-030-58420-7/pbk; 978-3-030-58418-4/ebook). viii, 406 p. (2020).
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### An algorithm for real and complex rational minimax approximation. (English)Zbl 1452.65035

MSC:  65D15 41A20
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### Rational spline histopolation of convex data. (English)Zbl 1453.41003

MSC:  41A15 41A05 41A20
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### Extremal properties of logarithmic derivatives of polynomials. (English. Russian original)Zbl 1448.41010

J. Math. Sci., New York 250, No. 1, 1-9 (2020); translation from Probl. Mat. Anal. 104, 3-9 (2020).
MSC:  41A20
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### Reduced order model approach to inverse scattering. (English)Zbl 1441.65073

MSC:  65M32 41A20
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### The multipoint Padé approximation problem and its Hankel vector. (English)Zbl 1437.41006

MSC:  41A21 41A20 15B57
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### Multivariate homogeneous two-point Padé approximants and continued fractions. (English)Zbl 1449.41010

MSC:  41A21 41A20 65D15
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### Asymptotics of polynomials orthogonal on a cross with a Jacobi-type weight. (English)Zbl 1439.42035

MSC:  42C05 41A20 41A21
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### Diagonalized Gegenbauer rational spectral methods for second- and fourth-order problems on the whole line. (English)Zbl 1440.65074

MSC:  65L10 41A20 34B15
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### On a class of Bernstein-type rational functions. (English)Zbl 1434.41011

MSC:  41A36 41A25 41A20
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### On the nonsymmetric approximation of continuous functions in the integral metric. (English)Zbl 07437685

MSC:  41A20 41A50
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### On certain applications of the two-point Padé approximants by using extended epsilon algorithm. (English)Zbl 07376200

MSC:  41A21 41A20 65D15

### The rational approximation to $$|x|^\alpha$$ ($$1 \le \alpha < 2$$) at the adjusted tangent nodes. (Chinese. English summary)Zbl 1449.41008

MSC:  41A20 41A25
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### On the degree of rational approximation of Markov functions on discrete sets. (English)Zbl 1442.30034

MSC:  30E10 41A20 41A25
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MSC:  41A20
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### Comparison analysis of two numerical methods for fractional diffusion problems based on the best rational approximations of $$t^\gamma$$ on $$[0, 1]$$. (English)Zbl 1429.65064

Apel, Thomas (ed.) et al., Advanced finite element methods with applications. Selected papers from the 30th Chemnitz finite element symposium, St. Wolfgang/Strobl, Austria, September 25–27, 2017. Cham: Springer. Lect. Notes Comput. Sci. Eng. 128, 165-185 (2019).
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### Approximation of weighted Müntz rational in Orlicz space. (Chinese. English summary)Zbl 1449.41009

MSC:  41A20 41A65
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### Direct and inverse problems for vector logarithmic potentials with external fields. (English)Zbl 1428.41016

MSC:  41A20 41A10 41A21
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### Generalized error-minimizing, rational inverse Langevin approximations. (English)Zbl 1425.74083

MSC:  74B20 74L15 74S30 82-08 65D15 41A20
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### Approximation by max-product operators of Kantorovich type. (English)Zbl 1438.41024

MSC:  41A35 41A25 41A20
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### Implicitizing rational surfaces without base points by moving planes and moving quadrics. (English)Zbl 1465.65016

MSC:  65D17 41A20
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MSC:  41A20
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### Efficient Ostrowski-like methods of optimal eighth and sixteenth order convergence and their dynamics. (English)Zbl 1438.65107

MSC:  65H05 41A20
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### Zolotarev iterations for the Matrix square Root. (English)Zbl 1420.65057

MSC:  65F30 65F60 41A20 49K35
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### Biorthogonal rational functions of $$R_{II}$$-type. (English)Zbl 1419.42020

MSC:  42C05 41A20 15A18
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### Mixed type Hermite-Padé approximation inspired by the Degasperis-Procesi equation. (English)Zbl 1435.30119

MSC:  30E10 42C05 41A20
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### Representation of conformal maps by rational functions. (English)Zbl 1414.30011

MSC:  30C30 41A20 65E05
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### A quicker approximation of the gamma function towards the Windschitl’s formula by continued fraction. (English)Zbl 1408.41007

MSC:  41A20 33B15 41A60
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