Invariant Manifold

An invariant set S subset R^n is said to be a C^r (r>=1) invariant manifold if S has the structure of a C^r differentiable manifold (Wiggins 1990, p. 14).

When stable and unstable invariant manifolds intersect, they do so in a hyperbolic fixed point (saddle point). The invariant manifolds are then called separatrices. A hyperbolic fixed point is characterized by two ingoing stable manifolds and two outgoing unstable manifolds. In integrable systems, incoming W^s and outgoing W^u manifolds join up smoothly.

See also

Homoclinic Point

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Rasband, S. N. "Invariant Manifolds." §5.2 in Chaotic Dynamics of Nonlinear Systems. New York: Wiley, pp. 89-92, 1990.Wiggins, S. "Invariant Manifolds: Linear and Nonlinear Systems." §1.1C in Introduction to Applied Nonlinear Dynamical Systems and Chaos. New York: Springer-Verlag, pp. 14-25, 1990.

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Invariant Manifold

Cite this as:

Weisstein, Eric W. "Invariant Manifold." From MathWorld--A Wolfram Web Resource.

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