On the NLS approximation for the nonlinear Klein-Gordon equation
S Hong, Y Hong - arXiv preprint arXiv:2208.11240, 2022 - arxiv.org
In this paper, developing a new approach based on Fourier analysis methods for dispersive
PDEs, we establish a low regularity NLS approximation for the one-dimensional cubic Klein …
PDEs, we establish a low regularity NLS approximation for the one-dimensional cubic Klein …