Invasive-invaded system of non-Lipschitz porous medium equations with advection

JLD Palencia - International Journal of Biomathematics, 2021 - World Scientific
This work provides analytical results towards applications in the field of invasive-invaded
systems modeled with nonlinear diffusion and with advection. The results focus on showing …

Support properties of solutions to a degenerate equation with absorption and variable density

Z Xiang, C Mu, X Hu - Nonlinear Analysis: Theory, Methods & Applications, 2008 - Elsevier
In this paper, we study the properties of solutions to a degenerate parabolic equation with
variable density and absorption. We first obtain a critical exponent, which distinguishes the …

EXISTENCE AND NONEXISTENCE OF LOCAL/GLOBAL SOLUTIONS FOR A NONHOMOGENEOUS HEAT EQUATION.

X Li, Z Xiang - Communications on Pure & Applied Analysis, 2014 - search.ebscohost.com
In this paper, we study the existence of local/global solutions to the Cauchy problem (ρ (x)
u< sub> t= Δu+ q (x) u< sup> p,(x, t)∈ ℝ< sup> NX (0, T), u (x, 0)= u< sub> 0(x)≤ 0, x∈ ℝ< …

Heteroclinic traveling fronts for a generalized Fisher-Burgers equation with saturating diffusion

M Garrione, M Strani - arXiv preprint arXiv:1702.03782, 2017 - arxiv.org
We study the existence of monotone heteroclinic traveling waves for a general Fisher-
Burgers equation with nonlinear and possibly density-dependent diffusion. Such a model …

On long-time dynamics of the solution of doubly nonlinear equation

E Novruzov, A Hagverdiyev - Qualitative theory of dynamical systems, 2016 - Springer
The subject of this investigation is the long time behavior of the positive solutions of the
following nonhomogeneous equation 1 ρ\left (\left| x\right|\right) ∂ β\left (v\right) ∂ tN i= 1 ∑ …

[PDF][PDF] Non-homogeneous reaction in a non-linear diffusion operator with advection to model a mass transfer process.

JL Diaz Palencia, F Prieto Munoz, JM García Haro - 2022 - jaac-online.com
It is the objective to provide a mathematical treatment of a nonhomogeneous and non-
lipschitz reaction problem with a non-linear diffusion and advection operator, so that it can …

The interfaces of an inhomogeneous non-Newtonian polytropic filtration equation with convection

Y Wang, Z Xiang - IMA Journal of Applied Mathematics, 2015 - ieeexplore.ieee.org
In this paper, we study the finite time blowup and global existence of the interfaces of the
inhomogeneous non-Newtonian polytropic filtration equation with convection ρ (x) u_t=(∣ …

Blow-up phenomena for polytropic equation with inhomogeneous density and source

E Novruzov - Journal of Mathematical Physics, 2015 - pubs.aip.org
The subject of this investigation is the blow-up phenomena of the positive solutions of the
mixed problem for the one-dimensional polytropic filtration equation with inhomogeneous …

Instantaneous shrinking of the solution to a nonlinear degenerate equation with variable coefficient and convection

Y Tian, C Mu - Applied mathematics and computation, 2008 - Elsevier
This paper deals with the Cauchy problem for the equation ut=(um) xx+ b (x, t)(up) x, with m>
1, 0< p< 1, and b (x, t) being positive. First, we establish the local existence and uniqueness …