Results 11 to 20 of about 62 (62)

Three Scale Unfolding Homogenization Method Applied to Cardiac Bidomain Model

open access: yes, 2021
International audienceIn this paper, we are dealing with a rigorous homogenization result at two different levels for the bidomain model of cardiac electro-physiology.
Bader, Fakhrielddine   +3 more
core   +1 more source

Homogenization of parabolic equations with an arbitrary number of scales in both space and time [PDF]

open access: yes, 2014
The main contribution of this paper is the homogenization of the linearparabolic equationtu (x, t) − ·axq1, ...,xqn,tr1, ...,trmu (x, t)= f(x, t)exhibiting an arbitrary finite number of both spatial and temporal scales.We briefly recall some fundamentals
Liselott Flodén   +11 more
core   +1 more source

Inverse scattering of elastic waves by periodic structures: Uniqueness under the third or fourth kind boundary conditions [PDF]

open access: yes, 2010
. The inverse scattering of a time-harmonic elastic wave by a two-dimensional periodic structure in R2 is investigated. The grating profile is assumed to be the graph of a continuous piecewise linear function on which the third or fourth kind boundary ...
Elschner, Johannes   +3 more
core   +1 more source

Time averaging for random nonlinear abstract parabolic equations

open access: yesAbstract and Applied Analysis, Volume 5, Issue 1, Page 1-11, 2000., 2000
On the basis of G‐convergence we prove an averaging result for nonlinear abstract parabolic equations, the operator coefficient of which is a stationary stochastic process.
G. Bruno, A. Pankov, T. Pankova
wiley   +1 more source

Homogenisation with error estimates of attractors for damped semi-linear anisotropic wave equations

open access: yesAdvances in Nonlinear Analysis, 2019
Homogenisation of global 𝓐ε and exponential 𝓜ε attractors for the damped semi-linear anisotropic wave equation ∂t2uε+y∂tuε−divaxε∇uε+f(uε)=g,$\begin{array}{} \displaystyle \partial_t ^2u^\varepsilon + y \partial_t u^\varepsilon-\operatorname{div} \left(a\
Cooper Shane, Savostianov Anton
doaj   +1 more source

Drift perturbation’s influence on traveling wave speed in KPP-Fisher system

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
This paper dressed the drift perturbation effects on the traveling wave speed in a reaction-diffusion system. We prove the existence of a traveling front solution of a KPP-Fisher equation and we show an asymptotic expansion of her speed.
Dkhil Fathi, Mannoubi Bechir
doaj   +1 more source

Waveguide with non-periodically alternating Dirichlet and Robin conditions: homogenization and asymptotics

open access: yes, 2013
International audienceWe consider a magnetic Schrödinger operator in a planar infinite strip with frequently and non-periodically alternating Dirichlet and Robin boundary conditions.
Cardone, Giuseppe   +2 more
core   +1 more source

Asymptotic study of a nonlinear elliptic boundary Steklov problem on a nanostructure

open access: yesDemonstratio Mathematica
The present study is related to the existence and the asymptotic behavior of the solution of a nonlinear elliptic Steklov problem imposed on a nanostructure depending on the thickness parameter ε\varepsilon (nano-scale), distributed on the boundary of ...
Maadan Hicham, Messaho Jamal
doaj   +1 more source

Model of two-temperature convective transfer in porous media

open access: yes, 2017
International audienceIn this paper, we study the asymptotic behaviour of the solution of a convective heat transfer boundary problem in an "-periodic domain which consists of two interwoven phases, solid and fluid, separated by an interface.
Isabelle Gruais   +3 more
core   +1 more source

Convergence rates of eigenvalue problems in perforated domains: the case of small volume

open access: yesAdvanced Nonlinear Studies
This paper is concerned with the Dirichlet eigenvalue problem for Laplace operator in a bounded domain with periodic perforation in the case of small volume.
Shen Zhongwei, Zhuge Jinping
doaj   +1 more source

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