Max Ryser, of Manitou Springs Fire Department, checks to make sure a propane tank was turned off at a home near the Fourmile Canyon Fire, Friday, Sept.10,2010. 最大赖瑟,消防部门的曼尼普林斯,检查,以确保一个丙烷罐被拒绝在靠近福迈尔卡宁消防,星期五,2010年9月10日回家了。
Ryser Theorem is an expression of Matrix product and Sum Formula, by which two identities are drawn, thereby proving the character of the Stirling number of the second kind. Ryser定理给出了矩阵积和式的一个表达式。利用Ryser定理,得到了两个恒等式;
Application of Ryser Theorem of Matrix Product and Sum Formula 矩阵积和式的Ryser定理的应用