Results 1 to 10 of about 717 (67)

Global well posedness for the semilinear edge-degenerate parabolic equations on singular manifolds

open access: yesAdvances in Nonlinear Analysis, 2023
In this article, we study the long-time dynamical behavior of the solution for a class of semilinear edge-degenerate parabolic equations on manifolds with edge singularities. By introducing a family of potential well and compactness method, we reveal the
Chen Yuxuan
doaj   +1 more source

On Cauchy problem for fractional parabolic-elliptic Keller-Segel model

open access: yesAdvances in Nonlinear Analysis, 2022
In this paper, we concern about a modified version of the Keller-Segel model. The Keller-Segel is a system of partial differential equations used for modeling Chemotaxis in which chemical substances impact the movement of mobile species.
Nguyen Anh Tuan   +2 more
doaj   +1 more source

On the extinction problem for a p-Laplacian equation with a nonlinear gradient source

open access: yesOpen Mathematics, 2021
We deal with the extinction properties of the weak solutions for a p-Laplacian equation with a gradient nonlinearity. The critical extinction exponent is specified and the decay estimates of the extinction solutions are given.
Liu Dengming, Yu Miaojun
doaj   +1 more source

Legendre-Chebyshev pseudo-spectral method for the diffusion equation with non-classical boundary conditions

open access: yesMoroccan Journal of Pure and Applied Analysis, 2020
The present paper is devoted to the numerical approximation for the diffusion equation subject to non-local boundary conditions. For the space discretization, we apply the Legendre-Chebyshev pseudospectral method, so that, the problem under consideration
Chattouh Abdeldjalil, Saoudi Khaled
doaj   +1 more source

Global existence and finite time blowup for a nonlocal semilinear pseudo-parabolic equation

open access: yesAdvances in Nonlinear Analysis, 2020
In this paper, the initial boundary value problem for a nonlocal semilinear pseudo-parabolic equation is investigated, which was introduced to model phenomena in population dynamics and biological sciences where the total mass of a chemical or an ...
Wang Xingchang, Xu Runzhang
doaj   +1 more source

Data smoothing with applications to edge detection

open access: yesOpen Mathematics, 2022
The aim of this paper is to present a new stable method for smoothing and differentiating noisy data defined on a bounded domain Ω⊂RN\Omega \subset {{\mathbb{R}}}^{N} with N≥1N\ge 1.
Al-Jamal Mohammad F.   +2 more
doaj   +1 more source

A probabilistic solution to the Stroock-Williams equation [PDF]

open access: yes, 2014
We consider the initial boundary value problem \begin{eqnarray*}u_t=\mu u_x+\tfrac{1}{2}u_{xx}\qquad (t>0,x\ge0),\\u(0,x)=f(x)\qquad (x\ge0),\\u_t(t,0)=\nu u_x(t,0)\qquad (t>0)\end{eqnarray*} of Stroock and Williams [Comm. Pure Appl. Math. 58 (2005) 1116-
Peskir, Goran
core   +1 more source

Sharp Fronts Due to Diffusion and Viscoelastic Relaxation in Polymers [PDF]

open access: yes, 1991
A model for sharp fronts in glassy polymers is derived and analyzed. The major effect of a diffusing penetrant on the polymer entanglement network is taken to be the inducement of a differential viscoelastic stress.
Cohen, Donald S., White, Andrew B., Jr.
core   +1 more source

Parabolic equations with the second order Cauchy conditions on the boundary [PDF]

open access: yes, 2007
The paper studies some ill-posed boundary value problems on semi-plane for parabolic equations with homogenuous Cauchy condition at initial time and with the second order Cauchy condition on the boundary of the semi-plane.
Duren P, Nikolai Dokuchaev, Tikhonov A N
core   +2 more sources

Global existence and blow-up of weak solutions for a class of fractional p-Laplacian evolution equations

open access: yesAdvances in Nonlinear Analysis, 2020
In this paper, we study the fractional p-Laplacian evolution equation with arbitrary initial energy,
Liao Menglan, Liu Qiang, Ye Hailong
doaj   +1 more source

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