摘要
A new direct approach based on the Fourier transformation is developed and applied to study the perturbed sine-Gordon equation.Since a new basis for perturbation expansion is introduced,the first-order correction is expressed in terms of Bessell functions.
作者
YAN Jia-ren
TANG Yi
ZHOU Guang-hui
颜家壬;唐翌;周光辉(Department of Physics,Hunan Normal University,Changsha 410081;Department of Physics,Xiangtan University,Xiangtan 411105)
基金
Supported by the National Natural Science Foundation of China under Grant No.19775013.
