摘要
利用分块矩阵的知识,将高等代数中两道习题成立的充分条件加强到充要条件.并且对文献[3]的结论作了进一步的推广证明.
Using matrix knowledeg, the sufficient condition of two exercises in Advanced Algebra give an establishment about necessary and sufficient,the conclusion of literature[3] give a further proof.
出处
《甘肃联合大学学报(自然科学版)》
2009年第5期115-116,121,共3页
Journal of Gansu Lianhe University :Natural Sciences
基金
甘肃省教育厅科研项目(0709B-04)
关键词
分块矩阵
矩阵的秩
初等变换
初等矩阵
block matrix
rank of matrix
elmentary transformation
elmentary matrix