单形的一个几何不等式的两个推广

Two Extensions of a geometrical Inequality for a Simplex

Ｍ．Ｓ．Ｋｌａｍｋｉｎ于１９７９年获得了单形的Ｅｕｌｅｒ不等式Ｒ≥ｎｒ，最近杨世国、左铨如等分别推广了其结果，本文进一步推广了这些结果。

In 1979,M.S.Klamkin obtained Euler's inequality R≥nr for a simplex。Recently,Yang Shiguo and Zuo Ruquan et al.extended this result.In this paper,We further extend theresults。