Document Type

Article

Publication Date

9-1-1997

Abstract

We give a simple proof that an n x n orthogonal matrix with n greater than or equal to 2 which cannot be written as a direct sum has at least 4n - 4 nonzero entries.

Publication Title

Rocky Mountain Journal of Mathematics

DOI

10.1216/rmjm/1181071872

Included in

Mathematics Commons

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