Abstract
The paper considers how cardinal exponential B-splines can be applied in solving singularly perturbed boundary problems. The exponential nature and the multiresolution property of these splines are essential for an accurate simulation of a singular behavior of some differential equation solutions. Based on the knowledge that the most of exponential B-spline properties coincide with those of polynomial splines (smoothness, compact support, positivity, partition of unity, reconstruction of polynomials, recursion for derivatives), one novel algorithm is proposed. It merges two well known approaches for solving such problems, fitted operator and fitted mesh methods. The exponential B-spline basis is adapted for an interval because a considered problem is solved on a bounded domain.
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Radunović, D. Multiresolution exponential B-splines and singularly perturbed boundary problem. Numer Algor 47, 191–210 (2008). https://doi.org/10.1007/s11075-008-9171-1
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DOI: https://doi.org/10.1007/s11075-008-9171-1