Abstract
Sufficient conditions are given to assure that a four-dimensional matrix
Research Article | Open Access
λ
Academic Editor: Linda R. Sons
Received28 Dec 2006
Accepted19 Mar 2007
Published14 Aug 2007
References
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Copyright
Copyright © 2007 Richard F. Patterson. This is an open access article distributed under the
Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.