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A Nekhoroshev type theorem for the nonlinear Klein-Gordon equation with potential. (arXiv:1705.03105v2 [math.AP] UPDATED)

来源于:arXiv
We study the one-dimensional nonlinear Klein-Gordon (NLKG) equation with a convolution potential, and we prove that solutions with small analytic norm remain small for exponentially long times. The result is uniform with respect to $c \geq 1$, which however has to belong to a set of large measure. 查看全文>>