【摘要】 对等惯、等轴性且具有固定端的n圆盘系统的特征多项式进行了分析。得出了其系数与二项式系数的一个有趣的关系;并对特征值的取值进行了有关讨论;最后也给出了得到的三个组合恒等式。更多还原

【Abstract】 This paper analyses the characteristic polynomial of the n-circular disk system with same inertia, with same axis properties and with fixed ends. An interesting connection between coefficients of the polynomial and binomial coefficients (theorem 2)is obtained. The range of the charateristic values (theorem 4) is here discussed. And three combinatorial identities are given.更多还原