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Product Ranks of the 3 × 3 Determinant and Permanent
Published online by Cambridge University Press: 20 November 2018
Abstract
We show that the product rank of the
$3\,\times \,3$
determinant
${{\det }_{3}}$
is
$5$
, and the product rank of the
$3\,\times \,3$
permanent
$\text{per}{{\text{m}}_{3}}$
is
$4$
. As a corollary, we obtain that the tensor rank of
${{\det }_{3}}$
is
$5$
and the tensor rank of
$\text{per}{{\text{m}}_{3}}$
is
$4$
. We show moreover that the border product rank of
$\text{per}{{\text{m}}_{3}}$
is larger than
$n$
for any
$n\,\ge \,3$
.
- Type
- Research Article
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- Copyright
- Copyright © Canadian Mathematical Society 2016
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