Abstract

We develop computer-assisted methods of proof for rigorous computation of the Evans function in order to prove stability of traveling waves. We use the parameterization method, series solutions, and the Newton-Kantorovich Theorem to obtain precise, rigorous error bounds for the numerical solution of the ODE used in the construction of the Evans function. We demonstrate these methods on a scalar reaction-diffusion model and on the Gray-Scott model.

Degree

PhD

College and Department

Physical and Mathematical Sciences; Mathematics

Rights

https://lib.byu.edu/about/copyright/

Date Submitted

2023-04-20

Document Type

Dissertation

Handle

http://hdl.lib.byu.edu/1877/etd13148

Keywords

Evans function, rigorous computation, stability of waves, Gray-Scott model

Language

english

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