Recent developments in barycentric rational interpolation
JP Berrut, R Baltensperger, HD Mittelmann - Trends and applications in …, 2005 - Springer
In 1945, W. Taylor discovered the barycentric formula for evaluating the interpolating
polynomial. In 1984, W. Werner has given first consequences of the fact that the formula …
polynomial. In 1984, W. Werner has given first consequences of the fact that the formula …
Introducing phaedra: a new spectral code for simulations of relativistic magnetospheres
K Parfrey, AM Beloborodov, L Hui - Monthly Notices of the Royal …, 2012 - academic.oup.com
We describe a new scheme for evolving the equations of force-free electrodynamics, the
vanishing-inertia limit of magnetohydrodynamics. This pseudo-spectral code uses global …
vanishing-inertia limit of magnetohydrodynamics. This pseudo-spectral code uses global …
New quadrature formulas from conformal maps
Gauss and Clenshaw–Curtis quadrature, like Legendre and Chebyshev spectral methods,
make use of grids strongly clustered at boundaries. From the viewpoint of polynomial …
make use of grids strongly clustered at boundaries. From the viewpoint of polynomial …
Stable high‐order finite‐difference methods based on non‐uniform grid point distributions
M Hermanns, JA Hernandez - International journal for …, 2008 - Wiley Online Library
It is well known that high-order finite-difference methods may become unstable due to the
presence of boundaries and the imposition of boundary conditions. For uniform grids …
presence of boundaries and the imposition of boundary conditions. For uniform grids …
Prolate spheroidal wavefunctions as an alternative to Chebyshev and Legendre polynomials for spectral element and pseudospectral algorithms
JP Boyd - Journal of Computational Physics, 2004 - Elsevier
Prolate spheroidal functions of order zero are generalizations of Legendre polynomials
which, when the “bandwidth parameter” c> 0, oscillate more uniformly on x∈[− 1, 1] than …
which, when the “bandwidth parameter” c> 0, oscillate more uniformly on x∈[− 1, 1] than …
Eigenvalue stability of radial basis function discretizations for time-dependent problems
Differentiation matrices obtained with infinitely smooth radial basis function (RBF)
collocation methods have, under many conditions, eigenvalues with positive real part …
collocation methods have, under many conditions, eigenvalues with positive real part …
Optimal blended spectral-element operators for acoustic wave modeling
G Seriani, SP Oliveira - Geophysics, 2007 - library.seg.org
Spectral-element methods, based on high-order polynomials, are among the most
commonly used techniques for computing accurate simulations of wave propagation …
commonly used techniques for computing accurate simulations of wave propagation …
Spectral methods based on prolate spheroidal wave functions for hyperbolic PDEs
QY Chen, D Gottlieb, JS HeSthaven - SIAM Journal on Numerical Analysis, 2005 - SIAM
We examine the merits of using prolate spheroidal wave functions (PSWFs) as basis
functions when solving hyperbolic PDEs using pseudospectral methods. The relevant …
functions when solving hyperbolic PDEs using pseudospectral methods. The relevant …
Spectral methods for partial differential equations
B Costa - CUBO, A Mathematical Journal, 2004 - cubo.ufro.cl
In this article we present the essential aspects of spectral methods and their applications to
the numerical solution of Partial Differential Equations. Starting from the fundamental ideas …
the numerical solution of Partial Differential Equations. Starting from the fundamental ideas …
An iterated pseudospectral method for delay partial differential equations
J Mead, B Zubik-Kowal - Applied numerical mathematics, 2005 - Elsevier
The Chebyshev pseudospectral semi-discretization preconditioned by a transformation in
space is applied to delay partial differential equations. The Jacobi waveform relaxation …
space is applied to delay partial differential equations. The Jacobi waveform relaxation …