The nonlinear eigenvalue problem

S Güttel, F Tisseur - Acta Numerica, 2017 - cambridge.org
Nonlinear eigenvalue problems arise in a variety of science and engineering applications,
and in the past ten years there have been numerous breakthroughs in the development of …

A rational approximation method for solving acoustic nonlinear eigenvalue problems

M El-Guide, A Miȩdlar, Y Saad - Engineering Analysis with Boundary …, 2020 - Elsevier
We present two approximation methods for computing eigenfrequencies and eigenmodes of
large-scale nonlinear eigenvalue problems resulting from boundary element method (BEM) …

Generalized rational Krylov decompositions with an application to rational approximation

M Berljafa, S Güttel - SIAM Journal on Matrix Analysis and Applications, 2015 - SIAM
Generalized rational Krylov decompositions are matrix relations which, under certain
conditions, are associated with rational Krylov spaces. We study the algebraic properties of …

Automatic rational approximation and linearization of nonlinear eigenvalue problems

P Lietaert, K Meerbergen, J Pérez… - IMA Journal of …, 2022 - academic.oup.com
We present a method for solving nonlinear eigenvalue problems (NEPs) using rational
approximation. The method uses the Antoulas–Anderson algorithm (AAA) of Nakatsukasa …

Compact rational Krylov methods for nonlinear eigenvalue problems

R Van Beeumen, K Meerbergen, W Michiels - SIAM Journal on Matrix Analysis …, 2015 - SIAM
We propose a new uniform framework of compact rational Krylov (CORK) methods for
solving large-scale nonlinear eigenvalue problems A(λ)x=0. For many years, linearizations …

FEAST eigensolver for nonlinear eigenvalue problems

B Gavin, A Międlar, E Polizzi - Journal of computational science, 2018 - Elsevier
The linear FEAST algorithm is a method for solving linear eigenvalue problems. It uses
complex contour integration to calculate the eigenvectors associated with eigenvalues that …

[HTML][HTML] Calculating the full leaky Lamb wave spectrum with exact fluid interaction

DA Kiefer, M Ponschab, SJ Rupitsch… - The Journal of the …, 2019 - pubs.aip.org
Lamb waves are elastodynamic guided waves in plates and are used for non-destructive
evaluation, sensors, and material characterization. These applications rely on the …

[HTML][HTML] Rosenbrock's theorem on system matrices over elementary divisor domains

FM Dopico, V Noferini, I Zaballa - Linear Algebra and its Applications, 2025 - Elsevier
Rosenbrock's theorem on polynomial system matrices is a classical result in linear systems
theory that relates the Smith-McMillan form of a rational matrix G with the Smith form of an …

Coupled BE–FE based vibroacoustic modal analysis and frequency sweep using a generalized resolvent sampling method

T Liang, J Wang, J **ao, L Wen - Computer Methods in Applied Mechanics …, 2019 - Elsevier
For several decades, the coupled boundary element and finite element (BE–FE) approach
has been recognized as a potential tool for modeling sound–structure interaction problems …

Strong linearizations of rational matrices

A Amparan, FM Dopico, S Marcaida, I Zaballa - SIAM Journal on Matrix …, 2018 - SIAM
This paper defines for the first time strong linearizations of arbitrary rational matrices, studies
in depth properties and characterizations of such linear matrix pencils, and develops …