Results 21 to 30 of about 2,477 (140)

On the relativistic heat equation in one space dimension

open access: yesProceedings of the London Mathematical Society, Volume 107, Issue 6, Page 1395-1423, December 2013., 2013
We study the relativistic heat equation in one space dimension. We prove a local regularity result when the initial datum is locally Lipschitz in its support. We propose a numerical scheme that captures the known features of the solutions and allows for analysing further properties of their qualitative behaviour.
J. A. Carrillo, V. Caselles, S. Moll
wiley   +1 more source

Stability Analysis of a Model of Atherogenesis: An Energy Estimate Approach II

open access: yesComputational and Mathematical Methods in Medicine, Volume 11, Issue 1, Page 67-88, 2010., 2010
This paper considers modelling atherogenesis, the initiation of atherosclerosis, as an inflammatory instability. Motivated by the disease paradigm articulated by Russell Ross, atherogenesis is viewed as an inflammatory spiral with positive feedback loop involving key cellular and chemical species interacting and reacting within the intimal layer of ...
A. I. Ibragimov   +3 more
wiley   +1 more source

Mathematical Modelling of Immune Response in Tissues

open access: yesComputational and Mathematical Methods in Medicine, Volume 10, Issue 1, Page 9-38, 2009., 2009
We have developed a spatial–temporal mathematical model (PDE) to capture fundamental aspects of the immune response to antigen. We have considered terms that broadly describe intercellular communication, cell movement, and effector function (activation or inhibition).
B. Su   +3 more
wiley   +1 more source

Stability Analysis of a Model of Atherogenesis: An Energy Estimate Approach

open access: yesComputational and Mathematical Methods in Medicine, Volume 9, Issue 2, Page 121-142, 2008., 2008
Atherosclerosis is a disease of the vasculature that is characterized by chronic inflammation and the accumulation of lipids and apoptotic cells in the walls of large arteries. This disease results in plaque growth in an infected artery typically leading to occlusion of the artery. Atherosclerosis is the leading cause of human mortality in the US, much
A. I. Ibragimov   +3 more
wiley   +1 more source

An efficient approach for solving a class of nonlinear 2D parabolic PDEs

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 17, Page 881-899, 2004., 2004
We consider a class of nonlinear 2D parabolic equations that allow for an efficient application of an operator splitting technique and a suitable linearization of the discretized problem. We apply our scheme to study the finite extinction phenomenon for the porous‐medium equation with strong absorption.
Dongjin Kim, Wlodek Proskurowski
wiley   +1 more source

A hybrid neural network model for the dynamics of the Kuramoto‐Sivashinsky equation

open access: yesMathematical Problems in Engineering, Volume 2004, Issue 3, Page 305-321, 2004., 2004
A hybrid approach consisting of two neural networks is used to model the oscillatory dynamical behavior of the Kuramoto‐Sivashinsky (KS) equation at a bifurcation parameter α = 84.25. This oscillatory behavior results from a fixed point that occurs at α = 72 having a shape of two‐humped curve that becomes unstable and undergoes a Hopf bifurcation at α =
Nejib Smaoui
wiley   +1 more source

The generalized Burgers equation with and without a time delay

open access: yesInternational Journal of Stochastic Analysis, Volume 2004, Issue 1, Page 73-96, 2004., 2004
We consider the generalized Burgers equation with and without a time delay when the boundary conditions are periodic with period 2π. For the generalized Burgers equation without a time delay, that is, ut = vuxx − uux + u + h(x), 0 < x < 2π, t > 0, u(0, t) = u(2π, t), u(x, 0) = u0(x), a Lyapunov function method is used to show boundedness and uniqueness
Nejib Smaoui, Mona Mekkaoui
wiley   +1 more source

Equivalence Relation between Initial Values and Solutions for Evolution $p$-Laplacian Equation in Unbounded Space

open access: yes, 2020
In this paper, an equivalence relation between the ω-limit set of initial values and the ω-limit set of solutions is established for the Cauchy problem of evolution p-Laplacian equation in the unbounded space Yσ(R). To overcome the difficulties caused by
Liangwei Wang
semanticscholar   +1 more source

Multigrid Method for a Two Dimensional Fully Nonlinear Black-Scholes Equation with a Nonlinear Volatility Function

open access: yesJournal of Mathematical Study, 2020
This paper deals with the task of pricing European basket options in the presence of transaction costs. We develop a model that incorporates the illiquidity of the market into the classical two-assets Black-Scholes framework.
Aicha Driouch Hassan Al Moatassime
semanticscholar   +1 more source

On a class of nonlinear reaction‐diffusion systems with nonlocal boundary conditions

open access: yesAbstract and Applied Analysis, Volume 2004, Issue 9, Page 793-813, 2004., 2004
We prove the existence, uniqueness, and continuous dependence of a generalized solution of a nonlinear reaction‐diffusion system with only integral terms in the boundaries. We first solve a particular case of the problem by using the energy‐integral method. Next, via an iteration procedure, we derive the obtained results to study the solvability of the
Abdelfatah Bouziani
wiley   +1 more source

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