Results 21 to 30 of about 2,229 (130)

Infinitely Many Solutions of the Neumann Problem for Elliptic systems in Anisotropic Variable Exponent Sobolev Spaces

open access: yesMoroccan Journal of Pure and Applied Analysis, 2017
In this paper, we prove the existence of in finitely many solutions for the following system by applying a critical point variational principle obtained by Ricceri as a consequence of a more general variational principle and the theory of the ...
Ahmed A.   +2 more
doaj   +1 more source

Pointwise Gradient Estimates in Multi-dimensional Slow Diffusion Equations with a Singular Quenching Term

open access: yesAdvanced Nonlinear Studies, 2020
We consider the high-dimensional equation ∂t⁡u-Δ⁢um+u-β⁢χ{u>0}=0{\partial_{t}u-\Delta u^{m}+u^{-\beta}{\chi_{\{u>0\}}}=0}, extending the mathematical treatment made in 1992 by B. Kawohl and R. Kersner for the one-dimensional case.
Dao Nguyen Anh   +2 more
doaj   +1 more source

Finite speed of propagation for a non-local porous medium equation [PDF]

open access: yes, 2015
This note is concerned with proving the finite speed of propagation for some non-local porous medium equation by adapting arguments developed by Caffarelli and V\'azquez (2010).Comment: 10 pages. New version after revision.
Imbert, Cyril
core   +2 more sources

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

Noncoercive parabolic obstacle problems

open access: yesAdvances in Nonlinear Analysis, 2023
We prove an existence result for obstacle problems related to convection-diffusion parabolic equations with singular coefficients in the convective term.
Farroni Fernando   +3 more
doaj   +1 more source

Finite and infinite speed of propagation for porous medium equations with fractional pressure [PDF]

open access: yes, 2013
We study a porous medium equation with fractional potential pressure: $$ \partial_t u= \nabla \cdot (u^{m-1} \nabla p), \quad p=(-\Delta)^{-s}u, $$ for $m>1 ...
del Teso, Félix   +2 more
core   +4 more sources

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

Parabolic inequalities in inhomogeneous Orlicz-Sobolev spaces with gradients constraints and L1-data

open access: yesMoroccan Journal of Pure and Applied Analysis, 2022
This work is devoted to the study of a new class of parabolic problems in inhomogeneous Orlicz spaces with gradient constraints and L1-data. One proves the existence of the solution by studying the asymptotic behaviour as p goes to ∞, of a sequence of ...
Ajagjal Sana
doaj   +1 more source

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