Abstract
Lyapunov functions are used in order to prove stability of equilibria, or to indicate a gradient-like structure of a dynamical system. Zelenyak (1968) and Matano (1988) constructed a Lyapunov function for quasilinear parabolic equations. We modify Matano’s method to construct a Lyapunov function for fully nonlinear parabolic equations under Dirichlet and mixed nonlinear boundary conditions of Robin type.
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Acknowledgements
We are indebted to Marek Fila for helpful discussions concerning nonlinear boundary conditions. Phillipo Lappicy was supported by FAPESP, Brasil, Grant No. 2017/07882-0. Bernold Fiedler was partially supported by SFB 910 of the Deutsche Forschungsgemeinschaft, and some generous libations of Cachaça de Jambú.
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Lappicy, P., Fiedler, B. A Lyapunov function for fully nonlinear parabolic equations in one spatial variable. São Paulo J. Math. Sci. 13, 283–291 (2019). https://doi.org/10.1007/s40863-018-00115-2
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DOI: https://doi.org/10.1007/s40863-018-00115-2