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Towards a full higher order AD-based continuation and bifurcation framework

Abstract : Some of the theoretical aspects of continuation and bifurcation methods devoted to the solution for nonlinear parametric systems are presented in a higher-order automatic differentiation (HOAD) framework. Besides benefits in terms of generality and ease of use, HOAD is used to assess fold and simple bifurcations points. In particular, the formation of a geometric series in successive Taylor coefficients allows for the implementation of an efficient detection and branch switching method at simple bifurcation points. Some comparisons with the Auto and MatCont continuation software are proposed. Strengths are then exemplified on a classical case study in structural mechanics.
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Contributor : Isabelle Charpentier <>
Submitted on : Monday, October 21, 2019 - 3:53:25 PM
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Isabelle Charpentier, Bruno Cochelin. Towards a full higher order AD-based continuation and bifurcation framework. Optimization Methods and Software, Taylor & Francis, 2018, 33 (4-6), pp.945-962. ⟨10.1080/10556788.2018.1428604⟩. ⟨hal-02322419⟩



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