A modified boundary element method (BEM) is presented for computation of the fourth non--mixed boundary--value problems of electrostatic field. The BEM equation is derived, and the equation of constraint is presented.

• 本文提出用边界元法计算介质分区均匀情况下的静电场第四类非混合边值问题，推导出用边界元法计算第四类非混合边值问题的边界元方程组。