Nonlinear Dynamics and Chaos
Nonlinear Dynamics and Chaos
2nd Edition
ISBN: 9780813349107
Author: Steven H. Strogatz
Publisher: PERSEUS D
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Chapter 2.4, Problem 7E
Interpretation Introduction

Interpretation:

The analysis of the nonlinear system using the linear stability to classify the fixed points of the system x˙ = ax - x3, where  a can be positive, negative or zero. If linear stability analysis fails, the graphical arguments are used to determine the stability.

Concept Introduction:

Fixed points are the points where x˙ = 0.

If x* is the fixed point of the system, then it is stable if f '(x*) < 0, it is unstable if f '(x*) > 0, and the stability is inconclusive if f '(x*) = 0.

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