Phase function methods for second order linear ordinary differential equations with turning points

J Bremer - Applied and Computational Harmonic Analysis, 2023 - Elsevier
It is well known that second order linear ordinary differential equations with slowly varying
coefficients admit slowly varying phase functions. This observation is the basis of the …

[HTML][HTML] Optimally truncated WKB approximation for the 1D stationary Schrödinger equation in the highly oscillatory regime

A Arnold, C Klein, J Körner, JM Melenk - Journal of Computational and …, 2025 - Elsevier
This paper is dedicated to the efficient numerical computation of solutions to the 1D
stationary Schrödinger equation in the highly oscillatory regime. We compute an …

[HTML][HTML] A New Generalized Chebyshev Matrix Algorithm for Solving Second-Order and Telegraph Partial Differential Equations

WM Abd-Elhameed, RM Hafez, A Napoli, AG Atta - Algorithms, 2024 - mdpi.com
This article proposes numerical algorithms for solving second-order and telegraph linear
partial differential equations using a matrix approach that employs certain generalized …

An accelerated frequency-independent solver for oscillatory differential equations

T Stojimirovic, J Bremer - arXiv preprint arXiv:2409.18487, 2024 - arxiv.org
Oscillatory second order linear ordinary differential equations arise in many scientific
calculations. Because the running times of standard solvers increase linearly with frequency …

A solver for linear scalar ordinary differential equations whose running time is bounded independent of frequency

M Aubry, J Bremer - arXiv preprint arXiv:2311.08578, 2023 - arxiv.org
When the eigenvalues of the coefficient matrix for a linear scalar ordinary differential
equation are of large magnitude, its solutions exhibit complicated behaviour, such as high …

[PDF][PDF] Gravitational Wave Exotica-Advancing the Search for Signatures of Exotic Compact Objects and Gravitational Lensing from Data-Analysis and Theoretical …

KLR Lo - 2024 - thesis.library.caltech.edu
In this thesis, I explore two new arenas of gravitational-wave physics and advance them from
both data-analysis and theoretical perspectives. I probe the nature of the remnant of a …

[PDF][PDF] A Bibliography of Publications in SIAM Journal on Numerical Analysis: 2010–2019

NHF Beebe - 2024 - ctan.math.utah.edu
A Bibliography of Publications in SIAM Journal on Numerical Analysis: 2010–2019 Page 1
A Bibliography of Publications in SIAM Journal on Numerical Analysis: 2010–2019 Nelson …