Results 21 to 30 of about 200 (160)

Double-phase parabolic equations with variable growth and nonlinear sources

open access: yesAdvances in Nonlinear Analysis, 2022
We study the homogeneous Dirichlet problem for the parabolic equations ut−div(A(z,∣∇u∣)∇u)=F(z,u,∇u),z=(x,t)∈Ω×(0,T),{u}_{t}-{\rm{div}}\left({\mathcal{A}}\left(z,| \nabla u| )\nabla u)=F\left(z,u,\nabla u),\hspace{1.0em}z=\left(x,t)\in \Omega \times ...
Arora Rakesh, Shmarev Sergey
doaj   +1 more source

Blow-up results for damped wave equation with fractional Laplacian and non linear memory

open access: yes, 2022
This paper is devoted to find the critical exponent in Fujita’s sense and to prove the blow-up results of solutions for the damped equation with fractional Laplacian and nonlinear memory.
HADJ KADDOUR, Tayeb, HAKEM, Ali
core   +1 more source

Existence of solutions for a biharmonic equation with gradient term

open access: yes, 2023
In this paper, we mainly study the existence of radial solutions for a class of biharmonic equation with a convection term, involving two real parameters.
HAMYDY, Ahmed   +2 more
core   +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

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

A class of diffusion problem of Kirchhoff type with viscoelastic term involving the fractional Laplacian

open access: yes, 2020
This work is concerned with a class of diffusion problem of Kirchhoff type with viscoelastic term and nonlinear interior source in the setting of the fractional Laplacian.
LAPA, Eugenio Cabanillas   +3 more
core   +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

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

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