Characteristic multipliers for some periodic differential equations.

Characteristic multipliers for some periodic differential equations.
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Proc. Amer. Math. Soc. 22 (1969), 503-508

DOI: https://doi.org/10.1090/S0002-9939-1969-0245909-X

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References

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Theory of stability of motion

Michael Golomb, Solution of certain nonautonomous differential systems by series of exponential functions, Illinois J. Math. 3 (1959), 45–65. MR 104874