Results 11 to 20 of about 240 (185)

Error Estimates for Solutions of the Semilinear Parabolic Equation in Whole Space

open access: yesAbstract and Applied Analysis, 2014
This paper is focused on the error estimates for solutions of the three-dimensional semilinear parabolic equation with initial data u0∈L2(ℝ3). Employing the energy methods and Fourier analysis technique, it is proved that the error between the solution ...
Xiaomei Hu
doaj   +1 more source

A CARLEMAN'S INEQUALITY FOR A SYSTEM OF COUPLED PARABOLIC EQUATIONS

open access: yesPesquimat, 2014
In this work we consider a linearized system of parabolic equations associated to a semilinear system of heat equations. Following the ideas of O. Imanuvilov, M. Yamamoto and L.
Víctor Rafael Cabanillas Zannini
doaj   +1 more source

Construction of type I blowup solutions for a higher order semilinear parabolic equation

open access: yesAdvances in Nonlinear Analysis, 2019
We consider the higher-order semilinear parabolic ...
Ghoul Tej-Eddine   +2 more
doaj   +1 more source

Heteroclinic Orbits of Semilinear Parabolic Equations

open access: yesJournal of Differential Equations, 1996
The authors study attractors of semilinear parabolic problems \[ u_t= u_{xx}+ f(x, u, u_x),\;t> 0,\;0< x< 1,\quad u_x(t, 0)= u_x(t, 1)= 0. \] Here \(f\in C^2\) and appropriate dissipativity conditions are assumed so that the global attractor exists. It is known that the attractor consists of equilibria and heteroclinic orbits connecting them.
Fiedler, Bernold, Rocha, Carlos
openaire   +1 more source

ON AN ESTIMATE FOR THE MODULUS OF CONTINUITY OF A NONLINEAR INVERSE PROBLEM

open access: yesUral Mathematical Journal, 2015
A reverse time problem is considered for a semilinear parabolic equation. Two-sided estimates are obtained for the norms of values of a nonlinear operator in terms of the norms of values of the corresponding linear operator.
Elena V. Tabarintseva
doaj   +1 more source

Asymptotic speed of propagation for a viscous semilinear parabolic equation

open access: yesESAIM: Proceedings and Surveys, 2016
We characterize the asymptotic speed of propagation of almost planar solutions to a semilinear viscous parabolic equation, with periodic nonlinearity.
Cesaroni Annalisa   +2 more
doaj   +1 more source

Antiperiodic Problems for Nonautonomous Parabolic Evolution Equations

open access: yesAbstract and Applied Analysis, 2014
This work focuses on the antiperiodic problem of nonautonomous semilinear parabolic evolution equation in the form u′(t)=A(t)u(t)+f(t,u(t)), t∈R, u(t+T)=-u(t), t∈R, where (At)t∈R (possibly unbounded), depending on time, is a family of closed and densely ...
R. N. Wang, Y. Zhou
doaj   +1 more source

M-matrices and convergence of finite difference scheme for parabolic equation with integral boundary condition

open access: yesMathematical Modelling and Analysis, 2020
In the paper, the stability and convergence of difference schemes approximating semilinear parabolic equation with a nonlocal condition are considered.
Regimantas Čiupaila   +2 more
doaj   +1 more source

Well-posedness of the solution of the fractional semilinear pseudo-parabolic equation

open access: yesBoundary Value Problems, 2020
This article concerns the Cauchy problem for the fractional semilinear pseudo-parabolic equation. Through the Green’s function method, we prove the pointwise convergence rate of the solution.
Jiazhuo Cheng, Shaomei Fang
doaj   +1 more source

Asymptotic behavior for parabolic equations with interior degeneracy

open access: yesExamples and Counterexamples, 2022
The long time behavior of a class of degenerate parabolic equations in a bounded domain will be considered in the sense that the nonnegative diffusion coefficient a(x)is allowed to vanish in a set of positive measure in the interior of the domain.
María Astudillo   +3 more
doaj   +1 more source

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