共查询到15条相似文献,搜索用时 843 毫秒
1.
2.
3.
4.
5.
除环上rcf方阵的逆方阵 总被引:2,自引:0,他引:2
陈国龙 《高校应用数学学报(A辑)》2000,15(3):260-264
讨论了除环R上rcf方阵的逆方阵问题,证明了除环R上rcf方阵各种逆方阵存在的充分必要条件。 相似文献
8.
9.
对称无限布尔方阵的本原指数集的刻划 总被引:1,自引:0,他引:1
研究了对称无限布尔方阵,给出了对称无限布尔方阵为本原阵的一个充分必要条件,证明了具有有限直径d的对称无限布尔方阵的本原指数的上确界为2d,最后证明了直径不超过d的全体对称本原无限布尔方阵的本原指数集是E_d={1,2,…,2d}. 相似文献
10.
给出了无限布尔方阵周期的概念,研究了无限布尔方阵伴随有向图的若干性质,研究了有限布尔矩阵幂的图论性质,最后给出了无限布尔方阵传递指数的上、下界估计. 相似文献
11.
12.
A characterization of gr-simple rings is given by using the notion of componentwise-dense subrings of a full matrix ring over a division ring. As a consequence, any G-graded full matrix ring over a division ring is isomorphic to a dense subring of a full matrix ring with a good G-grading. Some conditions for a grading of a full matrix ring to be isomorphic to a good one are given, which generalize some results in: Dascascu, S., Lon, B., Nastasescu, C. and Montes, J. R., Group gradings on full matrix rings, J. Algebra, 220(1999), 709-728. 相似文献
13.
14.
15.
Periodica Mathematica Hungarica - Let D be a division ring with infinite center, K a proper division subring of D and N an almost subnormal subgroup of the multiplicative group $$D^*$$ of D. The... 相似文献