Results 21 to 30 of about 341,593 (214)

Double-phase parabolic equations with variable growth and nonlinear sources

open access: yesAdvances in Nonlinear Analysis, 2022
We study the homogeneous Dirichlet problem for the parabolic equations u t − div ( A ( z , ∣ ∇ u ∣ ) ∇ u ) = F ( z , u , ∇ u ) , z = ( x , t ) ∈ Ω × ( 0 , T ) , {u}_{t}-{\rm{div}}\left({\mathcal{A}}\left(z,| \nabla u| )\nabla u)=F\left(z,u,\nabla u ...
R. Arora, S. Shmarev
semanticscholar   +1 more source

Galerkin and Runge–Kutta methods: unified formulation, a posteriori error estimates and nodal superconvergence [PDF]

open access: yes, 2011
. We unify the formulation and analysis of Galerkin and Runge–Kutta methods for the time discretization of parabolic equations. This, together with the concept of reconstruction of the approximate solutions, allows us to establish a posteriori ...
A. Lozinski   +21 more
core   +5 more sources

Classical and weak solutions of the partial differential equations associated with a class of two-point boundary value problems

open access: yesBoundary Value Problems, 2018
This paper is concerned with a kind of first-order quasilinear parabolic partial differential equations associated with a class of ordinary differential equations with two-point boundary value problems. We prove that the function given by the solution of
Ning Ma, Zhen Wu
doaj   +1 more source

Nonexistence results of solutions of parabolic-type equations and systems on the Heisenberg group

open access: yesBoundary Value Problems, 2023
In this paper, we present necessary conditions for the existence of weak solution of the parabolic-type equations and systems on the Heisenberg group. The main technique for proving the results relies on the method of test functions.
Wei Shi
doaj   +1 more source

Rate of Convergence of Space Time Approximations for stochastic evolution equations [PDF]

open access: yes, 2007
Stochastic evolution equations in Banach spaces with unbounded nonlinear drift and diffusion operators driven by a finite dimensional Brownian motion are considered.
A. Cohen   +14 more
core   +8 more sources

A reduced fourth-order compact difference scheme based on a proper orthogonal decomposition technique for parabolic equations

open access: yesBoundary Value Problems, 2019
In this paper, we present a reduced high-order compact finite difference scheme for numerical solution of the parabolic equations. CFDS4 is applied to attain high accuracy for numerical solution of parabolic equations, but its computational efficiency ...
Baozou Xu, Xiaohua Zhang
doaj   +1 more source

The applications of Sobolev inequalities in proving the existence of solution of the quasilinear parabolic equation

open access: yesBoundary Value Problems, 2020
The aim of this paper is to show some applications of Sobolev inequalities in partial differential equations. With the aid of some well-known inequalities, we derive the existence of global solution for the quasilinear parabolic equations.
Yuanfei Li, Lianhong Guo, Peng Zeng
doaj   +1 more source

$L^P$ estimate for abstract linear parabolic equations

open access: yesProceedings of the Japan Academy, Series A, Mathematical Sciences, 1991
The authors consider the parabolic equations (*) \(du/dt+A(t)u=f\), \(u(0)=\alpha\), \(0\leq ...
Giga, Mariko   +2 more
openaire   +3 more sources

Analysis of non scalar control problems for parabolic systems by the block moment method

open access: yesComptes Rendus. Mathématique, 2023
This article deals with abstract linear time invariant controlled systems of parabolic type. In [9], with A. Benabdallah, we introduced the block moment method for scalar control operators.
Boyer, Franck, Morancey, Morgan
doaj   +1 more source

Direct and inverse problems for time-fractional pseudo-parabolic equations [PDF]

open access: yesQuaestiones Mathematicae. Journal of the South African Mathematical Society, 2020
The purpose of this paper is to establish the solvability results to direct and inverse problems for time-fractional pseudo-parabolic equations with the self-adjoint operators.
Michael Ruzhansky   +3 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy