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Hermitian型分块矩阵的极值秩 被引量:1

The Extremal Ranks of Hermitian Partitioned Matrix
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摘要 证明了可选取矩阵X和Hermitian矩阵Z,使得下面的Hermitian型分块矩阵(A XX*Z)取得它的极大秩和极小秩,这里A*=A∈Cm×m是一个已知的复矩阵,X∈Cm×k和Z*=Z∈Ck×k是两个任意的复矩阵. Abstract: This note, we show that how to choose the variable matrices X* =X and Z such that the Hermitian partitioned matrix (A XX*Z) attain its maximal and minimal rank, whereA*=A∈Cm×m is a known matrix,X∈Cm×k and Z*=Z∈Ck×k are two variable matrices.
出处 《大学数学》 2012年第1期137-139,共3页 College Mathematics
基金 上海市教育委员会科研创新重点项目(1122182) 上海市自然科学基金(10ZR1420600)
关键词 Hermitian型分块矩阵 极大秩 极小秩 Hermitian partitioned matrix maximal rank minimal rank
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