A SYMBOLIC COMPUTATION METHOD TO DECIDE THE COMPLETENESS OF THE SOLUTIONS TO THE SYSTEM OF LINEAR PARTIAL DIFFERENTIAL EQUATIONS

A symbolic computation method to decide whether the solutions to the system Of linear partial differential equation is complete via using differential algebra and characteristic set is presented. This is a mechanization method, and it can be carried out on the computer in the Maple environment.

从传播学角度看《红楼梦》的传播特色

《红楼梦》问世以来,流传之广,传播之远,是其他所有中国古典文学作品不可企及的。从传播学的角度看,作为一部小说,足见其具有自己独特的传播特色。首先是对符号的奇妙使用,其次是客观传播环境的促进作用;第三是作品本身与受众心理的契合。