Results 1 to 10 of about 183,010 (330)

Nonlinear elliptic-parabolic problems [PDF]

open access: yesArchive for Rational Mechanics and Analysis, 2012
We introduce a notion of viscosity solutions for a general class of elliptic-parabolic phase transition problems. These include the Richards equation, which is a classical model in filtration theory.
Kim, Inwon C., Pozar, Norbert
core   +2 more sources

Discontinuous Mixed Covolume Methods for Parabolic Problems [PDF]

open access: yesThe Scientific World Journal, 2014
We present the semidiscrete and the backward Euler fully discrete discontinuous mixed covolume schemes for parabolic problems on triangular meshes. We give the error analysis of the discontinuous mixed covolume schemes and obtain optimal order error ...
Ailing Zhu, Ziwen Jiang
doaj   +2 more sources

Noncoercive parabolic obstacle problems

open access: yesAdvances in Nonlinear Analysis, 2023
We prove an existence result for obstacle problems related to convection-diffusion parabolic equations with singular coefficients in the convective term.
Farroni Fernando   +3 more
doaj   +3 more sources

On Construction of Partially Dimension-Reduced Approximations for Nonstationary Nonlocal Problems of a Parabolic Type

open access: yesMathematics, 2023
The main aim of this article is to propose an adaptive method to solve multidimensional parabolic problems with fractional power elliptic operators.
Raimondas Čiegis   +3 more
doaj   +1 more source

Study of ODE limit problems for reaction-diffusion equations [PDF]

open access: yesOpuscula Mathematica, 2018
In this work we study ODE limit problems for reaction-diffusion equations for large diffusion and we study the sensitivity of nonlinear ODEs with respect to initial conditions and exponent parameters.
Jacson Simsen   +2 more
doaj   +1 more source

Initial-boundary value problem for higher-orders nonlinear elliptic-parabolic equations with variable exponents of the nonlinearity in unbounded domains without conditions at infinity

open access: yesМатематичні Студії, 2023
Initial-boundary value problems for parabolic and elliptic-parabolic (that is degenerated parabolic) equations in unbounded domains with respect to the spatial variables were studied by many authors.
M. M. Bokalo, O. V. Domanska
doaj   +1 more source

A Posteriori L_∞ (L_2 )+L_2 (H^1 )–Error Bounds in Discontinuous Galerkin Methods For Semidiscrete Semilinear Parabolic Interface Problems

open access: yesمجلة بغداد للعلوم, 2021
The aim of this paper is to derive a posteriori error estimates for semilinear parabolic interface problems. More specifically, optimal order a posteriori error analysis in the - norm for semidiscrete semilinear parabolic interface problems is derived by
Younis Abid Sabawi
doaj   +1 more source

On a Framework for the Stability and Convergence Analysis of Discrete Schemes for Nonstationary Nonlocal Problems of Parabolic Type

open access: yesMathematics, 2022
The main aim of this article is to propose a general framework for the theoretical analysis of discrete schemes used to solve multi-dimensional parabolic problems with fractional power elliptic operators. This analysis is split into three parts.
Raimondas Čiegis, Ignas Dapšys
doaj   +1 more source

On some nonlinear parabolic equations with variable exponents and measure data

open access: yesMoroccan Journal of Pure and Applied Analysis, 2020
We prove the existence of renormalized solutions to a class of nonlinear evolution equations, supplemented with initial and Dirichlet condition in the framework of generalized Sobolev spaces. The data are assumed merely integrable.
Hamdaoui Bouchra El, Bennouna Jaouad
doaj   +1 more source

Well-posedness of boundary value problems for reverse parabolic equation with integral condition [PDF]

open access: yesE-Journal of Analysis and Applied Mathematics, 2018
Reverse parabolic equation with integral condition is considered. Well-posedness of reverse parabolic problem in the Hölder space is proved. Coercive stability estimates for solution of three boundary value problems (BVPs) to reverse parabolic equation ...
Charyyar Ashyralyyev
doaj   +1 more source

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