Results 11 to 20 of about 309 (59)

Analytical results for 2-D non-rectilinear waveguides based on the Green's function [PDF]

open access: yes, 2007
We consider the problem of wave propagation for a 2-D rectilinear optical waveguide which presents some perturbation. We construct a mathematical framework to study such a problem and prove the existence of a solution for the case of small imperfections.
Ciraolo, Giulio, Magnanini, Rolando
core   +1 more source

Global Solution to the Three-Dimensional Incompressible Flow of Liquid Crystals [PDF]

open access: yes, 2009
The equations for the three-dimensional incompressible flow of liquid crystals are considered in a smooth bounded domain. The existence and uniqueness of the global strong solution with small initial data are established.
B. Desjardins   +18 more
core   +1 more source

Nonanalytic-hypoellipticity for some degenerate elliptic operators

open access: yes, 1972
35J70; 35A05.
M. S. Baouendi, C. Goulaouic
semanticscholar   +1 more source

A vanishing diffusion limit in a nonstandard system of phase field equations [PDF]

open access: yes, 2012
We are concerned with a nonstandard phase field model of Cahn-Hilliard type. The model, which was introduced by Podio-Guidugli (Ric. Mat. 2006), describes two-species phase segregation and consists of a system of two highly nonlinearly coupled PDEs.
Colli, Pierluigi   +3 more
core   +3 more sources

Asymptotic behaviour of reversible chemical reaction-diffusion equations [PDF]

open access: yes, 2010
We investigate the asymptotic behavior of the a large class of reversible chemical reaction-diffusion equations with the same diffusion. In particular we prove the optimal rate in two cases : when there is no diffusion and in the classical "two-by-two ...
Gentil, Ivan, Zegarlinski, Boguslaw
core   +3 more sources

Uniqueness and comparison principles for semilinear equations and inequalities in Carnot groups

open access: yesAdvances in Nonlinear Analysis, 2018
Variants of the Kato inequality are proved for distributional solutions of semilinear equations and inequalities on Carnot groups. Various applications to uniqueness, comparison of solutions and Liouville theorems are presented.
D’Ambrosio Lorenzo, Mitidieri Enzo
doaj   +1 more source

Eigenelements of a General Aggregation-Fragmentation Model [PDF]

open access: yes, 2009
We consider a linear integro-differential equation which arises to describe both aggregation-fragmentation processes and cell division. We prove the existence of a solution $(\lb,\U,\phi)$ to the related eigenproblem.
Adimy M.   +8 more
core   +9 more sources

On the global well-posedness of discrete Boltzmann systems with chemical reaction [PDF]

open access: yes, 2005
Classificação AMS: 76P05, 35A05, 35L50We study an initial-boundary value problem in one-space dimension for the discrete Boltzmann equation extended to a diatomic gas undergoing both elastic multiple collisions and chemical reactions.
Bellomo   +16 more
core   +1 more source

Effect of Torso Non-Homogeneities in the quasi-static inverse problems arising in electrocardiology

open access: yesMoroccan Journal of Pure and Applied Analysis, 2019
In the present paper, an homogeneous and non-homogeneous inverse problem constrained by the stationary problem in electrocardiology representing the heart, lungs surfaces, and torso model is investigated.
Ainseba BedrEddine   +2 more
doaj   +1 more source

Global well-posedness for the Gross-Pitaevskii equation with an angular momentum rotational term

open access: yes, 2008
In this paper, we establish the global well-posedness of the Cauchy problem for the Gross-Pitaevskii equation with an rotational angular momentum term in the space $\Real^2$.Comment: 10 ...
Avron   +16 more
core   +1 more source

Home - About - Disclaimer - Privacy