Results 21 to 30 of about 6,786 (289)

Long-time asymptotics of solutions of the second initial-boundary value problem for the damped Boussinesq equation

open access: yesAbstract and Applied Analysis, 1997
For the damped Boussinesq equation utt−2butxx=−αuxxxx+uxx+β(u2)xx,x∈(0,π),t>0;α,b=const>0,β=const∈R1, the second initial-boundary value problem is considered with small initial data.
Vladimir V. Varlamov
doaj   +1 more source

Designing optimal networks for multicommodity transport problem

open access: yesPhysical Review Research, 2021
Designing and optimizing different flows in networks is a relevant problem in many contexts. While a number of methods have been proposed in the physics and optimal transport literature for the one-commodity case, we lack similar results for the ...
Alessandro Lonardi   +3 more
doaj   +1 more source

Long‐time asymptotics for a coupled thermoelastic plate–membrane system [PDF]

open access: yesMathematical Methods in the Applied Sciences, 2021
In this paper, we consider a transmission problem for a system of a thermoelastic plate with (or without) rotational inertia term coupled with a membrane with different variants of damping for the plate and/or the membrane. We prove well‐posedness of the problem and higher regularity of the solution and study the asymptotic behavior of the solution ...
Bienvenido Barraza Martínez   +4 more
openaire   +4 more sources

Sign Tests for Long-memory Time Series [PDF]

open access: yes, 2005
This paper proposes sign-based tests for simple and composite hypotheses on the long-memory parameter of a time series process. The tests allow for nonstationary hypothesis, such as unit root, as well as for stationary hypotheses, such as weak dependence
Delgado, Miguel A., Velasco, Carlos
core   +1 more source

Decoherence in Conformal Field Theory

open access: yesJournal of High Energy Physics, 2020
Noise sources are ubiquitous in Nature and give rise to a description of quantum systems in terms of stochastic Hamiltonians. Decoherence dominates the noise-averaged dynamics and leads to dephasing and the decay of coherences in the eigenbasis of the ...
Adolfo del Campo, Tadashi Takayanagi
doaj   +1 more source

Vortex formation for a non-local interaction model with Newtonian repulsion and superlinear mobility

open access: yesAdvances in Nonlinear Analysis, 2022
We consider density solutions for gradient flow equations of the form ut = ∇ · (γ(u)∇ N(u)), where N is the Newtonian repulsive potential in the whole space ℝd with the nonlinear convex mobility γ(u) = uα, and α > 1.
Carrillo J.A.   +2 more
doaj   +1 more source

Asymptotic behavior of solutions of the damped Boussinesq equation in two space dimensions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1999
The Cauchy problem for the damped Boussinesq equation with small initial data is considered in two space dimensions. Existence and uniqueness of its classical solution is proved and the solution is constructed in the form of a series.
Vladimir V. Varlamov
doaj   +1 more source

Genus two KdV soliton gases and their long-time asymptotics

open access: yesForum of Mathematics, Sigma
This paper employs the Riemann-Hilbert problem and nonlinear steepest descent method of Deift-Zhou to provide a comprehensive analysis of the asymptotic behavior of the genus two Korteweg-de Vries soliton gases.
Deng-Shan Wang   +2 more
doaj   +1 more source

High-Speed Transmission in Long-Haul Electrical Systems

open access: yesInternational Journal of Differential Equations, 2018
We study the equations governing the high-speed transmission in long-haul electrical systems i∂tu-1/3∂x3u=iλ∂xu2u, t,x∈R+×R, u0,x=u0x, x∈R, where λ∈R,  ∂xα=F-1ξαF, and F is the Fourier transformation. Our purpose in this paper is to obtain the large time
Beatriz Juárez-Campos   +3 more
doaj   +1 more source

Droplet motion with contact-line friction: long-time asymptotics in complete wetting

open access: yes, 2023
We consider the thin-film equation for a class of free boundary conditions modelling friction at the contact line, as introduced by E and Ren. Our analysis focuses on formal long-time asymptotics of solutions in the perfect wetting regime. In particular,
Peschka, Dirk   +5 more
core   +1 more source

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