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arXiv:math/0409198 [math.CA]AbstractReferencesReviewsResources

Oscillation of linear ordinary differential equations: on a theorem by A. Grigoriev

Sergei Yakovenko

Published 2004-09-13Version 1

We give a simplified proof and an improvement of a recent theorem by A. Grigoriev, placing an upper bound for the number of roots of linear combinations of solutions to systems of linear equations with polynomial or rational coefficients.

Comments: 16 pages
Journal: J. Dyn. Control Syst. 12 (2006), no. 3, 433--449.
Categories: math.CA, math.CV, math.DS
Subjects: 34C08, 34C10, 34M10
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