A new method for periodic scattering problems using 2nd kind boundary integral equations and the free-space Green s function, adding extra degrees of freedom on the unit cell walls, and imposing quasi-periodicity in an expanded linear system.-A new m

an adaptive quite general fast multipole method in 2 dimensions with a nice Matlab-interface.

本文利用Ping-Liang Rui，Ru-Shan Chen提出的一种基于多层快速多极子（MLFMA）谱域两步预处理方法，来求解在单站RCS计算时产生的有多个右边项的大型线性方程组。-In this paper, Ping-Liang Rui, Ru-Shan Chen proposed based on multilevel fast multipole (MLFMA) spectral-domain two-step pretreatment method to solve the mon