Cover Image

Computing the unitary best approximant to the exponential function

Fuente: arXiv

Saved in:

Bibliographic Details
Main Author:	Jawecki, Tobias
Format:	Preprint
Published:	2025
Subjects:	Numerical Analysis 41A20 (Primary) 30E10, 33B10, 41A05, 41A50 (Secondary)
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

Similar Items

On the restriction to unitarity for rational approximations to the exponential function
by: Jawecki, Tobias
Published: (2024)

The error of Chebyshev approximations on shrinking domains
by: Jawecki, Tobias
Published: (2024)

On the uniqueness of best approximation in Orlicz spaces
by: Benavente, Ana, et al.
Published: (2024)

Comonotone approximation and interpolation by entire functions II
by: Burke, Maxim R.
Published: (2025)

Multivariate Interpolation in Unisolvent Nodes -- Lifting the Curse of Dimensionality
by: Hecht, Michael, et al.
Published: (2020)

Convergence analysis of Hermite approximations for analytic functions
by: Wang, Haiyong, et al.
Published: (2023)

Deep ReLU networks and high-order finite element methods II: Chebyshev emulation
by: Opschoor, Joost A. A., et al.
Published: (2023)

Approximation by quadrilateral finite elements
by: Arnold, Douglas N., et al.
Published: (2000)

Polynomial histopolation on mock-Chebyshev segments
by: Bruno, Ludovico Bruni, et al.
Published: (2024)

Positive definite functions on a regular domain
by: Buhmann, Martin, et al.
Published: (2022)

Constrained mock-Chebyshev least squares approximation for Hermite interpolation
by: Dell'Accio, Francesco, et al.
Published: (2024)

Exploiting locality in sparse polynomial approximation of parametric elliptic PDEs and application to parameterized domains
by: van Harten, Wouter, et al.
Published: (2023)

Whitney-type estimates for convex functions
by: Kaire, Jaskaran Singh, et al.
Published: (2023)

On the best convergence rates of lightning plus polynomial approximations
by: Xiang, Shuhuang, et al.
Published: (2023)

Perimeter of an Ellipse: Understanding Ramanujan's Approximation
by: Shankar, Uday
Published: (2026)

The Lebesgue constant for uniform approximation of differential forms
by: Bruno, Ludovico Bruni, et al.
Published: (2025)

The root-exponential convergence of lightning plus polynomial approximation on corner domains
by: Xiang, Shuhuang, et al.
Published: (2024)

Escaping the native space of Sobolev kernels by interpolation
by: Ehring, Tobias, et al.
Published: (2025)

A generalisation of de la Vallée-Poussin procedure to multivariate approximations
by: Sukhorukova, Nadezda, et al.
Published: (2017)

Computation of Zolotarev rational functions
by: Trefethen, Lloyd N., et al.
Published: (2024)

Approximation by linear sampling operators in Banach spaces
by: Kolomoitsev, Yurii
Published: (2026)

On some examples and counterexamples about weighted Lagrange interpolation with Exponential and Hermite weights
by: Szokol, Patricia
Published: (2025)

Randomized sketching of nonlinear eigenvalue problems
by: Güttel, Stefan, et al.
Published: (2022)

On harmonic approximation of Lipschitz functions on compacts in $\mathbb{R}^d$
by: Shirokov, Nikolai A., et al.
Published: (2025)

Hadamard-Type Asymptotics for Products of Best Rational Approximation Errors
by: Prokhorov, Vasiliy A.
Published: (2026)

Absolutely monotonic functions related to the asymptotic formula for the complete elliptic integral of the first kind
by: Zhao, Tiehong, et al.
Published: (2024)

Optimal asymptotic analyses on Laguerre and Hermite orthogonal approximation for functions of algebraic and logarithmic regularitiesYali
by: Zhang, Yali, et al.
Published: (2026)

The area of Hügelschäffer curves via Taylor series
by: Petrovic, Maja, et al.
Published: (2024)

Algorithms for pointwise and piecewise polynomial approximations to the trigonometric functions
by: Phuong, Quan Le
Published: (2025)

Strong Converse Inequalities for Bernstein Polynomials with Explicit Asymptotic Constants
by: Adell, José A., et al.
Published: (2024)

A convex dual problem for the rational minimax approximation and Lawson's iteration
by: Zhang, Lei-Hong, et al.
Published: (2023)

Sampling projections in the uniform norm
by: Krieg, David, et al.
Published: (2024)

Approximation of generalized Wiener classes of functions of several variables in different metrics
by: Shidlich, Andrii
Published: (2026)

Tropical solution of discrete best approximation problems
by: Krivulin, Nikolai
Published: (2025)

Quasi-interpolation for high-dimensional function approximation
by: Gao, Wenwu, et al.
Published: (2024)

Summed series involving \,_{1}F_{2} hypergeometric functions
by: Straton, Jack C.
Published: (2024)

Nash approximation of differentiable semialgebraic maps
by: Carbone, Antonio, et al.
Published: (2026)

A Rational Approximant for the Digamma Function
by: Weniger, Ernst Joachim
Published: (2003)

Irregular Input Data in Convergence Acceleration and Summation Processes: General Considerations and Some Special Gaussian Hypergeometric Series as Model Problems
by: Weniger, Ernst Joachim
Published: (2000)

Nonlinear sequence transformations for the acceleration of convergence and the summation of divergent series
by: Weniger, Ernst Joachim
Published: (2003)