supported by National Natural Science Foundation of China under Grant No.40774069;partially by the National Hi-Tech Research and Development Program of China under Crant No.2006AA09A102-08;State Key Basic Research Program under Grant No.2007CB209603
We explore the multisymplectic Fourier pseudospectral discretizations for the (3+1)-dimensional Klein-Gordon equation in this paper.The corresponding multisymplectic conservation laws are derived.Two kinds of explicit...