An Adjoint Matrix of a Real Idempotent Matrix
Received:March 19, 1994  
Key Words: idempotent matrices.  
Fund Project:
Author NameAffiliation
Jin Bai Kim Dept. of Math.
West Virginia University Morgantown
WV 26506
USA 
Hee Sik Kim Dept. of Math. Education Chungbuk National University
Chongju 360 763
Korea 
Seung Dong Kim Dept. of Math.
Kong Ju National Teachers′ University
Korea 
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Abstract:
      We prove that an adjoint matrix of a real idempotent matrix is idempotent.
Citation:
DOI:10.3770/j.issn:1000-341X.1997.03.003
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