Results 1 to 10 of about 243 (185)

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

On weak solutions of semilinear hyperbolic-parabolic equations [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1996
In this paper we prove the existence and uniqueness of weak solutions of the mixed problem for the nonlinear hyperbolic-parabolic equation (K1(x,t)u′)′+K2(x,t)u′+A(t)u+F(u)=f with null Dirichlet boundary conditions and zero initial data, where F(s) is a
Jorge Ferreira
doaj   +2 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

On Comparison Principles for Parabolic Equations with Nonlocal Boundary Conditions

open access: yesBoundary Value Problems, 2007
A generalization of the comparison principle for a semilinear and a quasilinear parabolic equations with nonlocal boundary conditions including changing sign kernels is obtained.
Yuandi Wang, Hamdi Zorgati
doaj   +2 more sources

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

Deep Neural Network Algorithms for Parabolic PIDEs and Applications in Insurance and Finance

open access: yesComputation, 2022
In this paper we study deep neural network algorithms for solving linear and semilinear parabolic partial integro-differential equations with boundary conditions in high dimension. Our method can be considered as an extension of the deep splitting method
Rüdiger Frey, Verena Köck
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

Carleman inequality for a class of super strong degenerate parabolic operators and applications

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2023
In this paper, we present a new Carleman estimate for the adjoint equations associated to a class of super strong degenerate parabolic linear problems. Our approach considers a standard geometric imposition on the control domain, which can not be removed
Bruno Sérgio Araújo   +2 more
doaj   +1 more source

A Class of Semilinear Parabolic Problems and Analytic Semigroups

open access: yesMathematics, 2022
(1) Background: This paper is devoted to the study of a class of semilinear initial boundary value problems of parabolic type. (2) Methods: We make use of fractional powers of analytic semigroups and the interpolation theory of compact linear operators ...
Kazuaki Taira
doaj   +1 more source

A Posteriori 𝑳∞(𝑳𝟐) and 𝑳∞(𝑯𝟏) Error Analysis of Semdiscrete Semilinear Parabolic Problems

open access: yesEurasian Journal of Science and Engineering, 2022
This paper aims to construct a posteriori error bounds for semilinear parabolic equations. The derivation of this bound is inspired by Makridakis and Nochetto 2003.
Younis A. Sabawi
doaj   +1 more source

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