Characteristic multiplier

In mathematics, and particularly ordinary differential equations, a characteristic multiplier is an eigenvalue of a monodromy matrix. The logarithm of a characteristic multiplier is also known as characteristic exponent. They appear in Floquet theory of periodic differential operators and in the Frobenius method.

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References

Teschl, Gerald. Ordinary Differential Equations and Dynamical Systems. Providence: American Mathematical Society. 

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