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This paper first establishes a distance inequality of the associated diagraph of a central symmetric primitive matrix, then characters the exponent set of central symmetric primitive matrices, and proves that the exponent set of central symmetric primitive matrices of order n is {1, 2,… ,n-1}. There is no gap in it. 相似文献
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本文研究了围长为2的n阶本原极小强连通有向图的1-指数集,证明了:当n(≥4)为偶数时,E(1)={4,5,6,7,…,2n-4),无缺数段。 相似文献
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MULTIPLICATIVE GROUP AUTOMORPHISMS OF INVERTIBLE UPPER TRIANGULAR MATRICES OVER FIELDS 总被引:1,自引:1,他引:0
1 IntroductionWe assume throughout that F is a field of characteristic not 2 and n 2 2. Let F* bethe multiplicative group of F and T; (F) the multiplicative group of invertible upper triangularn x n matrices over F. We denote by STs(F) and ST:(F) the subgroups, of T;(F), {(ail) ET:(F)Iaii = 1, Vi} and {(ail) E T:(F)laii = 11, Vi} respectively.Recently some authors have characterized the algebra automorphisms of upper triangularn x n matrices over some rings(see [2]-[5]). The authors … 相似文献
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围长为2的本原极小强连通有向图的1-指数集 总被引:1,自引:1,他引:0
本文研究了围长为2的本原极小强连通有向图的1-指数,证明了:当n为偶数时{4,5,7,8,9,11,…,2n-7,2n-5,2n-4}真包含 En(1)。 相似文献
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假若G =Zm1 Zm2… Zmr 为 (m1, m2,…, mr)型Abelian群, 其中Zmi 为 mi 阶的循环群且1≤i≤ r, m1 |m2|…| mr, S 为G 的满足0∈ S=-S 的生成子集. 如果 |S|>|G|/ρ, 其中ρ≥l mr /2l且mr=e(G) 为群 G 的所有元素的阶的最小公倍数, 则ρS=G. 更进一步作者推广了Klopsch与lev [1]的一个结论,有:若 G=Z2Zm 为 (2, m) 型 Abelian 群(m ≥8), 则 tm/2(G)=0. 相似文献
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