Lagrange系统Lie对称性导致的新型守恒量

研究Lagrange系统的Lie对称性和Lie对称性直接导致的新型守恒量.对Lagrange系统的运动微分方程、Lie对称性定义和判据进行具体的研究,得到了Lie对称性直接导致的新型守恒量的表达式.

Nielsen方程Mei对称性导致的一种新型守恒量

研究完整系统Nielsen方程Mei对称性导致的一种新型守恒量.在群的无限小变换下,由Nielsen方程Mei对称性的定义和判据,得到完整系统Nielsen方程Mei对称性导致的新型结构方程和新型守恒量.举例说明结果的应用.

弱非完整系统Mei对称性导致的新型精确和近似守恒量

研究弱非完整系统Lagrange方程的Mei对称性导致的一种结构方程和新型精确以及近似守恒量.首先建立系统的Lagrange方程.其次在群的无限小变换下,给出了弱非完整系统及其一次近似系统Mei对称性的定义和判据,然后得到了Mei对称性导致的新型结构方程、新型精确和近似守恒量的表达式.最后,举例研究系统的精确新型守恒量和近似新型守恒量问题.

The Study of SINA micro-blog Opinion Leaders Effect on Network Public Opinion Transmission

Opinion leaders play a critical role in network public opinion transmission, their perspectives can shape public opinion and influence policy formulation and implementation. The paper is based on SINA micro-blog, by structural equation model, as Fudan Poisoning Event for example, On the basis of in-depth analysis of opinion leaders effect on network public opinion transmission characteristics, Explore the opinion leaders on the influence of network public opinion transmission mechanism, in order to better play a role of opinion leader＇s guidance of public opinion.