摘要
本文给出了循环矩阵本原指数上界的新的估计及一种由级数较低的循环矩阵的本原指数估计级数较高的循环矩阵的本原指数的方法，解决了一类循环矩阵本原指数的计算问题．
In this paper, we give estimates for the upper bounds of primitive exponent of circulant matrices, give an approach to estimate the primitive exponent of a circulant matrix using the primitive exponent of a related circulant matrix with lower order, and compute the primitive exponents of a class of circulant matrices.
