Properties of solutions to porous medium problems with different sources and boundary conditions

T Li, N Pintus, G Viglialoro - Zeitschrift für angewandte Mathematik und …, 2019 - Springer
In this paper, we study nonnegative and classical solutions u= u (x, t) u= u (x, t) to porous
medium problems of the type where Ω Ω is a bounded and smooth domain of R^ N RN, with …

Positivity preserving high-order local discontinuous Galerkin method for parabolic equations with blow-up solutions

L Guo, Y Yang - Journal of Computational Physics, 2015 - Elsevier
In this paper, we apply positivity-preserving local discontinuous Galerkin (LDG) methods to
solve parabolic equations with blow-up solutions. This model is commonly used in …

Adaptivity and blow-up detection for nonlinear evolution problems

A Cangiani, EH Georgoulis, I Kyza, S Metcalfe - SIAM Journal on Scientific …, 2016 - SIAM
This work is concerned with the development of a space-time adaptive numerical method,
based on a rigorous a posteriori error bound, for a semilinear convection-diffusion problem …

Numerical blow-up for a nonlinear heat equation

FK N'Gohisse, TK Boni - Acta Mathematica Sinica, English Series, 2011 - Springer
This paper concerns the study of the numerical approximation for the following
initialboundary value problem\left {u_t-u_ xx= f\left (u\right), x ∈\left (0, 1\right), t ∈\left (0 …

[PDF][PDF] Fully discrete adaptive methods for a blow-up problem

C Brandle, P Groisman, JD Rossi - Mathematical Models and Methods in …, 2004 - Citeseer
FULLY DISCRETE ADAPTIVE METHODS FOR A BLOW-UP PROBLEM 1. Introduction We are
interested in developing fully discrete adaptive nu Page 1 FULLY DISCRETE ADAPTIVE …

Adaptive discontinuous Galerkin methods for nonlinear parabolic problems

SA Metcalfe - arXiv preprint arXiv:1504.02646, 2015 - arxiv.org
This work is devoted to the study of a posteriori error estimation and adaptivity in parabolic
problems with a particular focus on spatial discontinuous Galerkin (dG) discretisations. We …

An adaptive numerical method to handle blow-up in a parabolic system

C Brändle, F Quirós, J D. Rossi - Numerische Mathematik, 2005 - Springer
We study numerical approximations to solutions of a system of two nonlinear diffusion
equations in a bounded interval, coupled at the boundary in a nonlinear way. In certain …

Numerical analysis of the rescaling method for parabolic problems with blow-up in finite time

VT Nguyen - Physica D: Nonlinear Phenomena, 2017 - Elsevier
In this work, we study the numerical solution for parabolic equations whose solutions have a
common property of blowing up in finite time and the equations are invariant under the …

Adaptive numerical schemes for a parabolic problem with blow‐up

R Ferreira, P Groisman, JD Rossi - IMA journal of numerical …, 2003 - academic.oup.com
In this paper we present adaptive procedures for the numerical study of positive solutions of
the following problem: ut= uxx (x, t)∈(0, 1)×[0, T), ux (0, t)= 0 t∈[0, T), ux (1, t)= up (1, t) t∈[0 …

[PDF][PDF] Blow-up for the heat equation with a general memory boundary condition

K Deng, Z Dong - Communications on Pure and Applied Analysis, 2012 - researchgate.net
In this paper, we study the long-time behavior of nonnegative solutions of the heat equation
with a general memory boundary condition. We first present conditions on the memory term …