On optimal approximations in the eigenvalue problem for the Ritz and Bubnov-Galerkin methods
β Scribed by S.N. Kukudzhanov
- Publisher
- Elsevier Science
- Year
- 1983
- Weight
- 510 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0041-5553
No coin nor oath required. For personal study only.
β¦ Synopsis
To sum up, 1) for the selfadjoint case the new method is preferable to the m.d. method, since it converges more rapidly for the same volume of computational work; 2) in the non-~elfadjoint case, our series of counter-examples shows that the new method is not to be recommended.
REFERENCES
π SIMILAR VOLUMES
## Abstract Recently BabusΜkaβOh introduced the method of auxiliary mapping (MAM) which efficiently handles elliptic boundary value problems containing singularities. In this paper, a special weighted residue method, the Weighted RitzβGalerkin Method (WRGM), is investigated by introducing special w
Penalty combination of the Ritz~3alerkin and finite difference methods is presented for solving elliptic boundary value problems with singularities. The superconvergence rate, O(h2-~), of solution derivatives by the combination can be achieved while using quasiuniform rectangular difference grids, w
Overall comparisons are made for six efficient combinations of the Ritz-Galerkin and finite element methods for solving elliptic boundary value problems with singularities or interfaces. The comparisons are done by using theoretical analysis and numerical experiments. Significant relations among the