We consider the decay rate of solutions to nonlinear Klein-Gordon systems with a critical type nonlinearity. We will specify the optimal decay rate for a specific class of Klein-Gordon systems containing the dissipative nonlinearities. It will turn out that the decay rate which is previously found in some models is optimal.

中文翻译：

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临界类型的非线性Klein-Gordon系统解的最优衰减率

我们考虑具有临界类型非线性的非线性Klein-Gordon系统解的衰减率。我们将为特定类别的包含耗散非线性的Klein-Gordon系统指定最佳衰减率。事实证明，以前在某些模型中发现的衰减率是最佳的。