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矩阵C=c1A+c2B的幂等性
Idempotency of matrix C=c1A+c2B
【摘要】 设A为幂等矩阵,B为l-幂等矩阵(即Bl=B)且AB=BA.研究了矩阵A与B的线性组合C=c1A+c2B是幂等矩阵时非零复数对(c1,c2)所满足的条件,建立了C=c1A+c2B是幂等矩阵的10组充分条件.
【Abstract】 Let A be an idempotent matrix,B be an l-potent matrix(i.e.,Bl=B),and AB=BA.The conditions are discussed that nonzero complex number pair(c1,c2) satisfies when the combination(C=c1A+c2B) is an idempotent matrix.10 sufficient conditions are established to make C=c1A+c2B idempotent.
【关键词】 幂等矩阵;
l-幂等矩阵;
线性组合;
幂等性;
投影算子;
【Key words】 idempotent matrix; l-potent matrix; linear combination; idempotency; projector;
【Key words】 idempotent matrix; l-potent matrix; linear combination; idempotency; projector;
- 【文献出处】 上海海事大学学报 ,Journal of Shanghai Maritime University , 编辑部邮箱 ,2006年02期
- 【分类号】O151.21
- 【下载频次】71