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Collocation by singular splines
Authors:Tina Bosner  Mladen Rogina
Affiliation:(1) Department of Mathematics, University of Zagreb, Bijenička 30, 10000 Zagreb, Croatia
Abstract:Splines determined by the kernel of the differential operator $${D^{k}(Dsqrt{x}D)}$$ are known to be useful to solve the singular boundary value problems of the form $${Dsqrt{x}Du=f(x,u)}$$ . One of the most successful methods is the collocation method based on special Chebyshev splines. We investigate the construction of the associated B-splines based on knot-insertion algorithms for their evaluation, and their application in collocation at generalized Gaussian points. Specially, we show how to obtain these points as eigenvalues of a symmetric tridiagonal matrix of order k. This research was supported by Grant 037-1193086-2771, by the Ministry of science, education and sports of the Republic of Croatia.
Keywords:Chebyshev theory  Singular splines  Knot insertion  Generalized de Boor algorithm  Collocation  Generalized Gaussian points
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