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方言理论指导推普实践的重要收获——评林连通、马重奇主编的《福建人学习普通话指南》
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作者 陈芳 《福建师范大学学报(哲学社会科学版)》 北大核心 2002年第1期157-157,160,共2页
关键词 书评 林连通 马重奇 《福建人学习普通话指南》 推广普通话 方言 福建
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A Semi-Analytical Approach to Green's Functions for Problems in Multiply-Connected Regions on a Spherical Surface
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作者 V.N. Borodin 《Journal of Mathematics and System Science》 2013年第12期597-601,共5页
This work aims at potential fields generated by point sources in conductive perforated fragments of spherical shells. Such fields are interpreted as profiles of Green's functions of relevant boundary-value problems s... This work aims at potential fields generated by point sources in conductive perforated fragments of spherical shells. Such fields are interpreted as profiles of Green's functions of relevant boundary-value problems stated in multiply-connected regions for Laplace equation written in geographical coordinates. Those are efficiently computed by a modification of the method of functional equations, with closed analytical forms preliminary obtained for Green's functions for the corresponding simply-connected regions. 展开更多
关键词 Green's function Laplace equation spherical coordinates surfaces with apertures.
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