广义二次矩阵与其幂等矩阵线性组合幂等性的非平凡解
Journal of Jilin University(Science Edition)(2021)
Abstract
首先,用广义二次矩阵的基本性质,研究表示为A2=αA+βP的广义二次矩阵A与幂等矩阵P的线性组合ρA+σP为幂等的非平凡解(ρ,σ)的存在性,结果表明,当η2=4β+α2≠0时,ρA+σP有且仅有两个非平凡解,A可唯一地表示为这两个非平凡解生成的幂等矩阵的线性组合;其次,讨论当η2=4β+α2=0时ρA+σP非平凡解的情况.
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