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Rigorous numerics for global dynamics: a study of the Swift-Hohenberg equation. (English) Zbl 1058.35050

Summary: This paper presents a rigorous numerical method for the study and verification of global dynamics. In particular, this method produces a conjugacy or semiconjugacy between an attractor for the Swift-Hohenberg equation and a model system. The procedure involved relies on first verifying bifurcation diagrams produced via continuation methods, including proving the existence and uniqueness of computed branches as well as showing the nonexistence of additional stationary solutions. Topological information in the form of the Conley index, also computed during this verification procedure, is then used to build a model for the attractor consisting of stationary solutions and connecting orbits.

MSC:

35B45 A priori estimates in context of PDEs
35B60 Continuation and prolongation of solutions to PDEs
37L25 Inertial manifolds and other invariant attracting sets of infinite-dimensional dissipative dynamical systems
37B30 Index theory for dynamical systems, Morse-Conley indices
35A35 Theoretical approximation in context of PDEs

Software:

C-XSC 2.0
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