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Results tagged with reference-request
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user 94865
This tag is used if a reference is needed in a paper or textbook on a specific result.
4
votes
Partitioning an orthogonal matrix into full rank square submatrices
Thanks so much, Federico. That was very helpful. In case others are interested, this problem was also studied in the more general context of matroid theory in
C. Greene, "A multiple exchange propert …
- 81
4
votes
2
answers
877
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Partitioning an orthogonal matrix into full rank square submatrices
Let $U$ be an $n \times n$ orthogonal matrix. Given an arbitrary partition ${\mathcal P}_c=\{y_1,y_2,\ldots,y_k\}$ of the columns of
$U$, does there always exist a corresponding partition ${\mathcal …
- 81