The Group Involutory Matrix of the Combinations of Two Idempotent Matrices

Lingling Wu, Xiaoji Liu and Yaoming Yu

Journal of Applied Mathematics, 2012, vol. 2012, 1-17

Abstract:

We discuss the following problem: when ð ‘Ž 𠑃 + ð ‘ ð ‘„ + ð ‘ ð ‘ƒ ð ‘„ + ð ‘‘ ð ‘„ 𠑃 + ð ‘’ 𠑃 ð ‘„ 𠑃 + ð ‘“ ð ‘„ 𠑃 ð ‘„ + ð ‘” 𠑃 ð ‘„ 𠑃 ð ‘„ of idempotent matrices 𠑃 and ð ‘„ , where ð ‘Ž , ð ‘ , ð ‘ , ð ‘‘ , ð ‘’ , ð ‘“ , ð ‘” ∈ â„‚ and ð ‘Ž ≠0 , ð ‘ â‰ 0 , is group involutory.

Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnljam:504650

DOI: 10.1155/2012/504650

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