Results 1 to 10 of about 221 (166)

Quasilinear Parabolic Equations Associated with Semilinear Parabolic Equations

open access: yesMathematics, 2023
We formulate a quasilinear parabolic equation describing the behavior of the global-in-time solution to a semilinear parabolic equation. We study this equation in accordance with the blow-up and quenching patterns of the solution to the original ...
Katsuyuki Ishii   +2 more
doaj   +3 more sources

Lack of smoothing for bounded solutions of a semilinear parabolic equation

open access: yesAdvances in Nonlinear Analysis, 2020
We study a semilinear parabolic equation that possesses global bounded weak solutions whose gradient has a singularity in the interior of the domain for all t > 0.
Fila Marek, Lankeit Johannes
doaj   +2 more sources

Numerical quenching for a semilinear parabolic equation

open access: yesMathematical Modelling and Analysis, 2008
This paper concerns the study of the numerical approximation for the nonlinear parabolic boundary value problem with the source term leading to the quenching in finite time.
Diabate Nabongo, Theodore K. Boni
doaj   +3 more sources

A triviality result for semilinear parabolic equations

open access: yesMathematics in Engineering, 2022
We show a triviality result for "pointwise" monotone in time, bounded "eternal" solutions of the semilinear heat equation \begin{equation*} u_{t}=Δu + |u|^{p} \end{equation*} on complete Riemannian manifolds of dimension $n \geq 5$ with nonnegative Ricci tensor, when $p$ is smaller than the critical Sobolev exponent $\frac{n+2}{n-2}$.
Giovanni Catino   +2 more
openaire   +5 more sources

Blow-Up of the Solution for a Semilinear Parabolic Problem with a Mixed Source

open access: yesMathematics, 2022
A semilinear parabolic equation with the Dirichlet boundary condition is examined. The reaction source is a mixed nonlinear function. This paper investigates the existence and uniqueness of a solution.
Wai Yuen Chan
doaj   +1 more source

Null controllability of a semilinear degenerate parabolic equation with a gradient term

open access: yesBoundary Value Problems, 2020
This paper concerns the null controllability of a semilinear control system governed by degenerate parabolic equation with a gradient term, where the nonlinearity of the problem is involved with the first derivative. We first establish the well-posedness
Fengdan Xu, Qian Zhou, Yuanyuan Nie
doaj   +1 more source

Hyers-Ulam stability of a nonautonomous semilinear equation with fractional diffusion

open access: yesDemonstratio Mathematica, 2020
In this paper, we study the Hyers-Ulam stability of a nonautonomous semilinear reaction-diffusion equation. More precisely, we consider a nonautonomous parabolic equation with a diffusion given by the fractional Laplacian. We see that such a stability is
Villa-Morales José
doaj   +1 more source

Blow-up time of solutions to a class of pseudo-parabolic equations

open access: yesComptes Rendus. Mécanique, 2023
In this paper, we study the Dirichlet problem for a semilinear pseudo-parabolic equation. By using the energy estimates and ordinary differential inequalities, we studied the upper and lower bounds of blow-up time of the solutions.
Zhou, Jun, Wang, Xiongrui
doaj   +1 more source

On a semilinear parabolic equation [PDF]

open access: yesProceedings of the American Mathematical Society, 2006
We introduce a general class of potentials V = V ( x ,
openaire   +1 more source

Global Existence and Blow-Up of Solutions to a Parabolic Nonlocal Equation Arising in a Theory of Thermal Explosion

open access: yesJournal of Function Spaces, 2022
Focusing on the physical context of the thermal explosion model, this paper investigates a semilinear parabolic equation ut=Δu+a∫Ωupdx,x,t∈QT,n·∇u+guu=0,x,t∈ST,ux,0=u0x,x∈Ω with nonlocal sources under nonlinear heat-loss boundary conditions, where a,p>0 ...
Wenyuan Ma, Zhixuan Zhao, Baoqiang Yan
doaj   +1 more source

Home - About - Disclaimer - Privacy