𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The discrete minimum principle for quadratic spline discretization of a singularly perturbed problem

✍ Scribed by K. Surla; Z. Uzelac; Lj. Teofanov


Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
207 KB
Volume
79
Category
Article
ISSN
0378-4754

No coin nor oath required. For personal study only.

✦ Synopsis


We consider a singularly perturbed boundary value problem with two small parameters. The problem is numerically treated by a quadratic spline collocation method. The suitable choice of collocation points provides the discrete minimum principle. Error bounds for the numerical approximations are established. Numerical results give justification of the parameter-uniform convergence of the numerical approximations.


πŸ“œ SIMILAR VOLUMES


Study of the discrete singularly perturb
✍ Zoran Gajic; Xue-Min Shen πŸ“‚ Article πŸ“… 1991 πŸ› Elsevier Science 🌐 English βš– 330 KB

This paper presents a new approach in the study of the linear quadratic control problem of singularly perturbed discrete systems. By applying a bilinear transformation, the algebraic discrete Riccati equation is converted into a continuous one, which can be solved by using the reduced-order recursiv

Sufficient conditions of the discrete ma
✍ RΓ³bert HorvΓ‘th πŸ“‚ Article πŸ“… 2008 πŸ› Elsevier Science 🌐 English βš– 504 KB

New numerical models for simulation of physical and chemical phenomena have to meet certain qualitative requirements, such as nonnegativity preservation, maximum-minimum principle, and maximum norm contractivity. For parabolic initial boundary value problems, these properties are generally guarantee

Uniform convergence of discretization er
✍ P. Wesseling πŸ“‚ Article πŸ“… 1996 πŸ› John Wiley and Sons 🌐 English βš– 544 KB

Cell-centered discretization of the convection-diffusion equation with large PCclet number Pe is analyzed, in the presence of a parabolic boundary layer. It is shown theoretically how, by suitable mesh refinement in the boundary layer, the accuracy can be made to be uniform in Pe, at the cost of a I