nonnegative matrices theory 非负矩阵理论
totally nonnegative matrices 完全非负矩阵
symmetric nonnegative matrices 对称非负矩阵
irreducible nonnegative matrices 既约非负矩阵
Factorizations of Nonnegative Matrices 非负矩阵的分解
nonnegative positive matrices 非负矩阵
文3中，李宗山等把非负矩阵的基和周期的概念推广到powerful符号矩阵。
参考来源 - In 3,Z. S. Li , F. Hall and C. Eschenbash extended the concept of the base and period from nonnegative matrices to powerful sign patter matrices .·2,447,543篇论文数据，部分数据来源于NoteExpress
They are important theoretical foundation of the study about nonnegative matrices spectral radius.
这些都是研究矩阵谱性质的重要依据。
Based on this result, the spectral decomposition theorems are proved by using permutation canonical forms of nonnegative matrices.
在此基础上，利用非负方阵的置换标准形证明了谱分解定理。
Secondly, we discuss the problem of decomposing a nonnegative matrix into a product of fully indecomposable nonnegative matrices in chapter 2.
其次，在第二章中，我们讨论了将一个非负矩阵分解成有限多个完全不可分非负阵的乘积的问题。
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