Characterizing and Computing the Norm of Time-Delay Systems by Solving the Delay Lyapunov Equation

E Jarlebring, J Vanbiervliet… - IEEE Transactions on …, 2010 - ieeexplore.ieee.org
It is widely known that the solutions of Lyapunov equations can be used to compute the H 2
norm of linear time-invariant (LTI) dynamical systems. In this paper, we show how this theory …

Solving singular generalized eigenvalue problems by a rank-completing perturbation

ME Hochstenbach, C Mehl, B Plestenjak - SIAM Journal on Matrix Analysis …, 2019 - SIAM
Generalized eigenvalue problems involving a singular pencil are very challenging to solve,
with respect to both accuracy and efficiency. The existing package Guptri is very elegant but …

Stability criteria for time-delay systems from an insightful perspective on the characteristic equation

TH Scholl, L Gröll - IEEE Transactions on Automatic Control, 2022 - ieeexplore.ieee.org
This article provides a delay-dependent and a necessary and sufficient delay-independent
stability criterion for linear autonomous continuous-time systems with a discrete delay. We …

Invariance properties in the root sensitivity of time-delay systems with double imaginary roots

E Jarlebring, W Michiels - Automatica, 2010 - Elsevier
If iω∈ iR is an eigenvalue of a time-delay system for the delay τ0 then iω is also an
eigenvalue for the delays τk≔ τ0+ k2π/ω, for any k∈ Z. We investigate the sensitivity …

On the quadratic two-parameter eigenvalue problem and its linearization

A Muhič, B Plestenjak - Linear algebra and its applications, 2010 - Elsevier
We introduce the quadratic two-parameter eigenvalue problem and linearize it as a singular
two-parameter eigenvalue problem. This, together with an example from model updating …

On linearizations of the quadratic two-parameter eigenvalue problem

ME Hochstenbach, A Muhič, B Plestenjak - Linear algebra and its …, 2012 - Elsevier
We present several transformations that can be used to solve the quadratic two-parameter
eigenvalue problem (QMEP), by formulating an associated linear multiparameter eigenvalue …

[HTML][HTML] Projective spectrum and cyclic cohomology

P Cade, R Yang - Journal of Functional Analysis, 2013 - Elsevier
For a tuple A=(A 1, A 2,…, A n) of elements in a unital algebra B over C, its projective
spectrum P (A) or p (A) is the collection of z∈ C n, or respectively z∈ P n− 1 such that the …

A new algorithm using L-BFGS for two-parameter eigenvalue problems from Lamé's system and simulation

HÜ Özer, A Duran - Mathematical Modelling and Numerical …, 2024 - dergipark.org.tr
We deal with the challenges and solutions for two-parameter eigenvalue problems (TPEPs)
involving large-scale various dense coefficient matrices using several numerical methods …

Time-delay effects on controlled seismically excited linear and nonlinear structures

H Temimi, M Ben-Romdhane, S El-Borgi… - International Journal of …, 2016 - World Scientific
The main purpose of this paper is to examine the influence of time delay associated with a
semi-active variable viscous (SAVV) damper on the response of seismically excited linear …

Roots of bivariate polynomial systems via determinantal representations

B Plestenjak, ME Hochstenbach - SIAM Journal on Scientific Computing, 2016 - SIAM
We give two determinantal representations for a bivariate polynomial. They may be used to
compute the zeros of a system of two of these polynomials via the eigenvalues of a two …