Results 131 to 140 of about 38,753 (164)

Redefined quintic B-spline collocation technique for nonlinear higher order PDEs

Computational and Applied Mathematics, 2022
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Mohammad Tamsir   +3 more
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An algorithmic construction of entropies in higher-order nonlinear PDEs

Nonlinearity, 2006
A new approach to the construction of entropies and entropy productions for a large class of nonlinear evolutionary PDEs of even order in one space dimension is presented. The task of proving entropy dissipation is reformulated as a decision problem for polynomial systems.
Ansgar Jüngel, Daniel Matthes
openaire   +1 more source

Higher-Order FEM for a System of Nonlinear Parabolic PDE’s in 2D with A-Posteriori Error Estimates

2004
Initial-boundary value problems for systems of nonlinear parabolic partial differential equations arise in many important practical applications in electromagnetics, chemistry, modelling of diffusion and heat transfer processes and other fields. We are concerned with their solution by means of the method of lines with higher-order finite element ...
Martin Zítka   +2 more
openaire   +1 more source

Semiconductor modeling and nonlinear higher-order PDEs.

2010
First we consider the sixth-order nonlinear parabolic equation which arise from an approximation of the quantum drift-di usion model and describe the evolution of the electron density in the semiconductor crystal. We prove the global{;in{;time existence of weak nonnegative solutions in one space dimension with periodic boundary conditions.
openaire  

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