The Group Involutory Matrix of the Combinations of Two Idempotent Matrices

We discuss the following problem: when aP+bQ+cPQ+dQP+ePQP+fQPQ+gPQPQ of idempotent matrices P and Q, where a,b,c,d,e,f,g∈ℂ and a≠0, b≠0, is group involutory.

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Bibliographic Details
Main Authors: Lingling Wu, Xiaoji Liu, Yaoming Yu
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Journal of Applied Mathematics
Online Access:http://dx.doi.org/10.1155/2012/504650
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