| On a Result of Xie Bangjie |
| Received:March 29, 1991 |
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| Abstract: |
| In this note, we show that if A = (aij)m×n is a matrix over skew field of quaternions, then (?) with equality holds if and only if the rows of A are all mutually orthogonal. |
| Citation: |
| DOI:10.3770/j.issn:1000-341X.1993.01.026 |
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