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Adaptive techniques for spline collocation
DOI:10.1007/s00607-005-0141-3.png)
Abstract
En 中文
We integrate optimal quadratic and cubic spline collocation methods for second-order two-point boundary value problems with adaptive grid techniques, and grid size and error estimators. Some adaptive grid techniques are based on the construction of a mapping function that maps uniform to non-uniform points, placed appropriately to minimize a certain norm of the error. One adaptive grid technique for cubic spline collocation is mapping-free and resembles the technique used in COLSYS (COLNEW) [2], [4]. Numerical results on a variety of problems, including problems with boundary or interior layers, and singular perturbation problems indicate that, for most problems, the cubic spline collocation method requires less computational effort for the same error tolerance, and has equally reliable error estimators, when compared to Hermite piecewise cubic collocation. Comparison results with quadratic spline collocation are also presented.
Keywords:
spline collocation
second-order two-point boundary value problem
error bounds
optimal order of convergence
adaptive grid
grid size estimator
error estimator
spline interpolation
Journal
C
IF:
2.8
Papers:
2.3K
Citations:
3.5K
Organization
No organization information available
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