Results 11 to 20 of about 11,648 (307)

Hyperbolic-parabolic singular perturbations in general regions [PDF]

open access: yesLe Matematiche, 1991
We consider a singular perturbations problem for the inhomogeneous damped wave equation and the inhomogeneous heat equation with moving boundary. We give rigorous and explicit estimates and show the uniform convergence.
Berardino D'Acunto
doaj   +1 more source

Singular rank one perturbations [PDF]

open access: yes, 2022
In this paper, A = B + V represents a self-adjoint operator acting on a Hilbert space H. We set a general theoretical framework and obtain several results for singular perturbations of A of the type A(beta) = A + beta tau*tau for tau being a functional ...
R. Del Río   +7 more
core   +1 more source

Generating cosmological perturbations in non-singular Horndeski cosmologies

open access: yesJournal of High Energy Physics, 2023
We construct a concrete model of Horndeski bounce with strong gravity in the past. Within this model we show that the correct spectra of cosmological perturbations may be generated at early contracting epoch, with mild fine-tuning ensuring that the ...
Yulia Ageeva   +2 more
doaj   +1 more source

Using large-scale perturbations in gene network reconstruction [PDF]

open access: yes, 2005
Background: Recent analysis of the yeast gene network shows that most genes have few inputs, indicating that enumerative gene reconstruction methods are both useful and computationally feasible.
Andrew Pomiankowski   +8 more
core   +1 more source

On spectral stability for rank one singular perturbations [PDF]

open access: yesOpuscula Mathematica
We study the embedded point spectrum of rank one singular perturbations of an arbitrary self-adjoint operator \(A\) on a Hilbert space \(\mathcal{H}\). These perturbations can be regarded as self-adjoint extensions of a densely defined closed symmetric ...
Mario Alberto Ruiz Caballero   +1 more
doaj   +1 more source

Singular Perturbation on a Subdomain

open access: yesJournal of Mathematical Analysis and Applications, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Aguilar, G, Lisbona, F
openaire   +2 more sources

Robust normalization and guaranteed cost control for a class of uncertain singular Markovian jump systems via hybrid impulsive control [PDF]

open access: yes, 2013
This paper investigates the problem of robust normalization and guaranteed cost control for a class of uncertain singular Markovian jump systems. The uncertainties exhibit in both system matrices and transition rate matrix of the Markovian chain.
Yan, Xinggang, Zhang, Qingling, Lv, Hui
core   +1 more source

Asymptotics of Regular and Irregular Solutions in Chains of Coupled van der Pol Equations

open access: yesMathematics, 2023
Chains of coupled van der Pol equations are considered. The main assumption that motivates the use of special asymptotic methods is that the number of elements in the chain is sufficiently large.
Sergey Kashchenko
doaj   +1 more source

H ? filtering for stochastic singular fuzzy systems with time-varying delay [PDF]

open access: yes, 2014
This paper considers the H? filtering problem for stochastic singular fuzzy systems with timevarying delay. We assume that the state and measurement are corrupted by stochastic uncertain exogenous disturbance and that the system dynamic is modeled ...
Cai, Min   +3 more
core   +1 more source

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