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Mathematics of Computation

ISSN 1088-6842(online) ISSN 0025-5718(print)



Marginal stability and stabilization in the numerical integration of ordinary differential equations

Author: H. Brunner
Journal: Math. Comp. 24 (1970), 635-646
MSC: Primary 65.61
MathSciNet review: 0273821
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Abstract: Strongly stable and consistent multistep methods with maximum order are subject to marginal (or weak) stability. In this paper we introduce modified multistep methods whose coefficients depend linearly on the stepsize $ h$ and a parameter $ L$ in such a way that the order of the original method is not decreased. By choosing $ L$ in a suitable manner (depending essentially on $ {f_y}(x,y)$ of the differential equation $ y' = f(x,y)$ and on the growth parameters of the multistep method), marginal stability can be eliminated.

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Keywords: Nonlinear ordinary differential equations of order one, numerical solution, optimal multistep methods, marginal stability, stabilization
Article copyright: © Copyright 1970 American Mathematical Society

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