The Current Population Survey(CPS)is a monthly household sample survey consisting of eight rotation groups,so that each ......

　　Wang et al.(2009)first introduced the skew chi-square distribution based on the multivariate skew normal distributio......

为在特征二的有限的域上的二次的表格的协会计划，这个协会计划的参数被使用矩阵技巧讨论。Forn = 2， 3，所有参数被计算。为 n ? 3，参数......

我们在从一个 amphicheiral 连接的亚历山大模块获得的 invariants 之中获得一个方程。为特殊情况，它在亚历山大多项式上推出必要条......

In this paper the Ⅰ and Ⅱ regular n-simplices are introduced. We prove that the sufficient and necessary conditions fo......