Sobolev preconditioning for the Poisson–Boltzmann equation
✍ Scribed by W.B. Richardson Jr.
- Book ID
- 104268251
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 379 KB
- Volume
- 181
- Category
- Article
- ISSN
- 0045-7825
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✦ Synopsis
This paper presents an overview of least-squares steepest descent using Sobolev gradients for several prototype dierential equations. In the linear case, the method is viewed as a very eective preconditioning strategy for the basic iterative method which arises from steepest descent, in particular, it acts to smooth the Euclidean gradient. Results are given for the one-dimensional Possion± Boltzmann equation from semiconductor device modeling.
📜 SIMILAR VOLUMES
Sobolev gradient type preconditioning is proposed for the numerical solution of the electrostatic potential equation. A constructive representation of the gradients leads to efficient Laplacian preconditioners in the iteration thanks to the available fast Poisson solvers. Convergence is then verifie
An adaptive mesh enrichment procedure for a finite-element solution of the twodimensional Poisson-Boltzmann equation is described. The mesh adaptation is performed by subdividing the cells using information obtained in the previous step of the solution and next rearranging the mesh to be a Delaunay