[HTML][HTML] Polynomial interpolation via mapped bases without resampling

S De Marchi, F Marchetti, E Perracchione… - Journal of Computational …, 2020 - Elsevier
In this work we propose a new method for univariate polynomial interpolation based on what
we call mapped bases. As theoretically shown, constructing the interpolating function via the …

[HTML][HTML] Treating the Gibbs phenomenon in barycentric rational interpolation and approximation via the S-Gibbs algorithm

JP Berrut, S De Marchi, G Elefante… - Applied Mathematics …, 2020 - Elsevier
In this work, we extend the so-called mapped bases or fake nodes approach to the
barycentric rational interpolation of Floater–Hormann and to AAA approximants. More …

Fast barycentric rational interpolations for complex functions with some singularities

S Yang, S Xiang - Calcolo, 2023 - Springer
Based on Cauchy's integral formula and conformal maps, this paper presents a new method
for constructing barycentric rational interpolation formulae for complex functions, which may …

Stable discontinuous mapped bases: the gibbs–runge-avoiding stable polynomial approximation (GRASPA) method

S De Marchi, G Elefante, F Marchetti - Computational and Applied …, 2021 - Springer
The mapped bases or Fake Nodes Approach (FNA), introduced in De Marchi et al.(J Comput
Appl Math 364: 112347, 2020c), allows to change the set of nodes without the need of …

[PDF][PDF] Polynomial mapped bases: theory and applications

S De Marchi, G Elefante, E Francomano… - … in Applied and …, 2022 - intapi.sciendo.com
In this paper, we collect the basic theory and the most important applications of a novel
technique that has shown to be suitable for scattered data interpolation, quadrature, bio …

Mapped polynomials and discontinuous kernels for Runge and Gibbs phenomena

SD Marchi - … Methods for Modelling, Approximation and Simulation, 2022 - Springer
In this paper, we present recent solutions to the problem of approximating functions by
polynomials for reducing in a substantial manner two well-known phenomena: Runge and …

[PDF][PDF] Quadrature at fake nodes

S De Marchi, G Elefante… - Dolomites …, 2021 - drna.padovauniversitypress.it
We investigate the use of the so-called mapped bases or fake nodes approach in the
framework of numerical integration. We show that such approach is able to mitigate the …

Relative instability compensation method for hand–eye collaborative system in large-scale components measurement

B Yu, W Liu, Y Zhang, D Ma, Y Yue, J Zhang - Measurement, 2022 - Elsevier
In a hand–eye collaborative measurement system, the measurement error caused by the
position change of an industrial robot end can create challenges during the high-precision …

Decomposition and conformal mapping techniques for the quadrature of nearly singular integrals

W Mitchell, A Natkin, P Robertson, M Sullivan… - BIT Numerical …, 2023 - Springer
Abstract Gauss–Legendre quadrature, Clenshaw–Curtis quadrature and the trapezoid rule
are powerful tools for numerical integration of analytic functions. For nearly singular …

Bounding the Lebesgue constant for a barycentric rational trigonometric interpolant at periodic well-spaced nodes

JP Berrut, G Elefante - Journal of Computational and Applied Mathematics, 2021 - Elsevier
A well-known result in linear approximation theory states that the norm of the operator,
known as the Lebesgue constant, of polynomial interpolation on an interval grows only …