摘要
概述了当今现代矩量理论的研究成果和矩量半群问题，其中也包含了作者的部份工作，
An general picture of the development of the modern moment theory and the problems of themornent semi-groups have been given,a psrt of the results of the research by the author has been includedhere
关键词
现代矩量理论
矩量半群
对称矩量问题
矩量理论
Moder moment theory
Moment semi-group
Symmetric moment problem
Hausdorff semi-group
