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Article
A Unified Approach to Computing Dynamical Equilibria
Canadian Applied Math Quarterly (2006)
  • Tjalling Ypma, Western Washington University
  • Yun-Qiu Shen, Western Washington University
Abstract

Different types of equilibria of dynamical systems, such as turning points and bifurcation points, are typically computed in different ways. We present a unified approach to computing any such point and show how to adapt the general approach to specific cases. The concept of a dynamical characterization matrix, which has the relevant type of singularity at the equilibrium point sought, is introduced. This matrix is embedded within a larger nonsingular matrix by using a bordering computed from one singular value decomposition at a point near the solution. The bordered matrix is used to define an extended system of nonlinear equations, for which Newton's method converges quadratically to the desired point. We give a general algorithm and provide numerical examples illustrating the technique.

Keywords
  • Dynamical systems,
  • Newton's methods
Disciplines
Publication Date
2006
Citation Information
Tjalling Ypma and Yun-Qiu Shen. "A Unified Approach to Computing Dynamical Equilibria" Canadian Applied Math Quarterly Vol. 14 Iss. 3 (2006)
Available at: http://works.bepress.com/tjalling_ypma/21/