PUBLICATIONS DE L'INSTITUT MATHÉMATIQUE (BEOGRAD) (N.S.) Vol. 33(47), pp. 119122 (1983) 

ON NDIMENSIONAL IDEMPOTENT MATRICESJin Bai Kim and James E. DowdyDepartment of Mathematics, West Virginia University, Morgantown, W.V. 26506, U.S.A,Abstract: An $n\times n$ matrix $A= (a_{ij})$ will be called a 2dimensional matrix of order $n$. We shall study 2 $m$dimensional idempotent matrices of order $n$ with respect to an associative matrix product. Keywords: Multidimensional matrices, idempotent, $n$dimensional idempotent matrices Classification (MSC2000): 15A99; 16A32 Full text of the article:
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