Supported by the Teaching and Research Award Program for Outstanding Young Teachers in Higher Education Institutions of the Ministry of Education,P.R.China.
A modified perturbation method of electromagnetic scattering from a rough surface is presented,in which the effect of the curvature of the surface is taken into account based on the conventional small perturbation met...
the National Natural Science Foundation of China under Grant No.19975025;“Scaling Plan”of China,and the Natural Science Foundation of Zhejiang Province.
Using the nonlinear Schrodinger(NLS)equation,which is used to describe the propagation of the solitons in many real physical systems like fiber and plasma,as a simple example,a direct perturbation method is establishe...
A singular perturbation method is used to remove secular terms in Hilbert expansion and Enskog expansion of the normal solution and those in Grad expansion of the"initial layer"solution of Boltzmann equation(B.e.).Sol...