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Schur补为零的2×2分块矩阵的Drazin逆
The Drazin Inverse of 2×2 Block Matrix with Generalized Schur Complement Equal to Zero
【摘要】 给出Schur补S=D-CA~D B=0的分块矩阵M=(ABCD)(其中A和D是方阵)分别在条件A~πBCA=0,A~πBCA~πB=0和ABCA~π=0,CA~πBCA~π=0下的Drazin逆表达式.这些结果扩展了Martinez-Serrano M F,Castro-Gonza1ez N(Appl.Math.Comput,2009,215:2733-2740)给出的M的Drazin逆表达式.
【Abstract】 In this paper,we give expressions for the Drazin inverse of 2×2 block matrix M =(ABCD)(A and D are square matrices) having generalized Schur complement S =D-CA~DB equal to zero under conditionsA~πBCA=0,A~πBCA~πB=0 and ABCA~π=0,CA~πBCA~π=0,separately.These results extend the results about the Drazin inverse of M given by Martinez-Serrano M F,Castro-Gonzalez N(Appl.Math.Comput.,2009,215:2733-2740).
【基金】 内蒙古自治区高等学校科学研究项目(NJZY14207)
- 【文献出处】 数学的实践与认识 ,Mathematics in Practice and Theory , 编辑部邮箱 ,2016年09期
- 【分类号】O151.21
- 【下载频次】82