本文就恰当微分方程的积分因子问题进行推广，得出两个定理。
This article makes an extension on the problem of integral factor in the total differential equation and has drawn two theorems.
探讨整值多项式及其恒因子，并给出费马小定理的一种证明方法。
This paper investigates the integral valued polynomial and its identity factors, also gives a new proof for Fermat's little theorem.
方法在因子分解定理的基础上提出了一个判别指数型分布族的简单方法。
Methods A simple method for distinguishing of exponential distribution family is obtained based on factorization theorem.
我们的结果是定理1 设R 是零因子可换环，那末R是非奇异的当且仅当R 是半素的。
Our result is Theorem 1 Let R be a ring such that zero divisors commute. Then R is nonsingular if and only if R is semiprime.
给出了对称对角A-因子循环分块矩阵的概念，讨论了它的一些性质，推广了几个主要定理．。
A concept of symmetric diagonal A-factor block circulant matrices and some of their prop- crtics are given, the main theorems are extended.
给出了对称对角A-因子循环分块矩阵的概念，讨论了它的一些性质，推广了几个主要定理．。
A concept of symmetric diagonal A-factor block circulant matrices and some of their prop- crtics are given, the main theorems are extended.
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