Abstract
We consider the global Cauchy problem for a two-component system of cubic semilinear wave equations in two space dimensions. We give a criterion for large-time nondecay of the energy for small amplitude solutions in terms of the radiation fields associated with the initial data.
Citation
Yoshinori Nishii. "Nondecay of the energy for a system of semilinear wave equations." Kyoto J. Math. 63 (2) 271 - 280, May 2023. https://doi.org/10.1215/21562261-10428437
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