Results 11 to 20 of about 3,896 (168)

Front propagation in nonlinear parabolic equations [PDF]

open access: yesJournal of the London Mathematical Society, 2014
We study existence and stability of travelling waves for nonlinear convection diffusion equations in the 1-D Euclidean space. The diffusion coefficient depends on the gradient in analogy with the p-Laplacian and may be degenerate. Unconditional stability is established with respect to initial data perturbations in the Lebesgue space of integrable ...
Eduard Feireisl   +3 more
openaire   +3 more sources

Analytic approximate solutions for some nonlinear Parabolic dynamical wave equations

open access: yesJournal of Taibah University for Science, 2020
In this paper, modified variational iteration algorithm-II is investigated for finding approximate solutions of nonlinear Parabolic equations. Comparisons of the MVIA-II with trigonometric B-spline collocation method, variational iteration method ...
Hijaz Ahmad   +3 more
doaj   +1 more source

Anisotropic parabolic equations with variable nonlinearity [PDF]

open access: yesPublicacions Matemàtiques, 2009
We study the Dirichlet problem for a class of nonlinear parabolic equations with nonstandard anisotropic growth conditions. Equations of this class generalize the evolutional p(x, t)-Laplacian. We prove theorems of existence and uniqueness of weak solutions in suitable Orlicz-Sobolev spaces, derive global and local in time L∞ bounds for the weak ...
Antontsev, S., Shmarev, S.
openaire   +6 more sources

The Classical Continuous Optimal Control for Quaternary Nonlinear Parabolic Boundary Value Problems with State Vector Constraints

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2022
This paper aims to study the quaternary classical continuous optimal control problem consisting of the quaternary nonlinear parabolic boundary value problem, the cost function, and the equality and inequality constraints on the state and the control ...
jamil Amir Al-Hawasy   +1 more
doaj   +1 more source

Observer Design for Lipschitz Nonlinear Parabolic PDE Systems With Unknown Input

open access: yesIEEE Access, 2020
In this article, a novel method to design the observer for a class of uncertain Lipschitz nonlinear parabolic partial differential equations (PDE) systems is investigated.
Teng-Fei Li
doaj   +1 more source

On some parabolic problems with measure sources

open access: yesMoroccan Journal of Pure and Applied Analysis, 2019
One of the recent advances in the investigation of nonlinear parabolic equations with a measure as forcing term is a paper by F. Petitta in which it has been introduced the notion of renormalized solutions to the initial parabolic problem in divergence ...
Abdellaoui Mohammed
doaj   +1 more source

On a comparison theorem for parabolic equations with nonlinear boundary conditions

open access: yesAdvances in Nonlinear Analysis, 2022
In this article, a new type of comparison theorem for some second-order nonlinear parabolic systems with nonlinear boundary conditions is given, which can cover classical linear boundary conditions, such as the homogeneous Dirichlet or Neumann boundary ...
Kita Kosuke, Ôtani Mitsuharu
doaj   +1 more source

Controllability for parabolic equations with nonlinear memory

open access: yesComputers & Mathematics with Applications, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Qiang Tao, Hang Gao 0001
openaire   +2 more sources

Differential difference inequalities related to parabolic functional differential equations [PDF]

open access: yesOpuscula Mathematica, 2010
Initial boundary value problems for nonlinear parabolic functional differential equations are transformed by discretization in space variables into systems of ordinary functional differential equations.
Milena Netka
doaj   +1 more source

Scaling in Nonlinear Parabolic Equations

open access: yesJournal of Mathematical Analysis and Applications, 1999
The Cauchy problem for parabolic equations with quadratic nonlinearity is studied. We investigate the existence of global-in-time solutions and their large-time behavior assuming some scaling property of the equation as well as of the norm of the Banach space in which the solutions are constructed.
openaire   +1 more source

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