This paper deals with a generalization of a technique already proposed by the authors for obtaining an effective estimation of the spectral accuracy in some regular and non regular Sturm-Liouville problems. The algorithm looks like a classical extrapolation process, but, unlike such a procedure, it does not require further approximations of the eigenvalues with different stepsize: for this reason it benefits from a moderate computational cost. Numerical experiments confirm the effectiveness of the suggested approach.
|Autori:||GHELARDONI P; GHERI G.; MARLETTA M|
|Titolo:||A quasi-extrapolation procedure for error estimation of numerical methods in Sturm-Liouville eigenproblems|
|Anno del prodotto:||2004|
|Digital Object Identifier (DOI):||10.1016/S0377-0427(03)00489-8|
|Appare nelle tipologie:||1.1 Articolo in rivista|