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矩陣之和Drazin逆的簡單表示

2021-09-12 03:18楊曉英王亞強(qiáng)劉新

楊曉英 王亞強(qiáng) 劉新

摘 要:根據(jù)矩陣核-冪零分解的思想,應(yīng)用Drazin逆的相關(guān)性質(zhì), 給出兩個(gè)矩陣之和在一定條件下Drazin逆簡單的表示。

關(guān)鍵詞:矩陣和;Drazin逆;核-冪零分解

中圖分類號(hào):O151.21

文獻(xiàn)標(biāo)志碼:A

參考文獻(xiàn):

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[2]楊曉英,劉新,王亞強(qiáng). 兩矩陣和的Drazin逆新的表示及其表示[J]. 高等學(xué)校計(jì)算數(shù)學(xué)學(xué)報(bào),2018, 40(3): 193-206.

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[6]楊曉英, 劉新, 王亞強(qiáng). 矩陣和的Drazin逆表示的新結(jié)果[J]. 高等學(xué)校計(jì)算數(shù)學(xué)學(xué)報(bào), 2019, 41(2): 164-175.

[7]MEYER C D, ROSE N J. The index and the Drazin inverse of block triangular matrices[J]. SIAM J. Appl. Math, 1977, 33: 1-7.

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(責(zé)任編輯:曾 晶)

Abstract:

According to the idea of matrix core-nilpotent decomposition, by applying the related properties of Drazin inverse, simple formulas of the sum of two matrices under certain conditions are given.

Key words:

sum of matrices; Drazin inverse; core-nilpotent decomposition