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arXiv · 2303.07845

A new formula of the determinant tensor with symmetries

Jeong-Hoon Ju·Taehyeong Kim·Yeongrak Kim
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Abstract

In this paper, we present a new formula of the determinant tensor $det_n$ for $n \times n$ matrices. In \cite{kim2023newdet4}, Kim, Ju, and Kim found a new formula of $4 \times 4$ determinant tensor $det_4$ which is available when the base field is not of characteristic $2$. Considering some symmetries in that formula, we found a new formula so that \begin{equation*} \operatorname{Crank}(det_n) \leq \operatorname{rank}(det_n) \leq \frac{n!}{2^{\lfloor(n-2)/2 \rfloor}} \end{equation*} when the base field is not of characteristic $2$.

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Jeong-Hoon Ju, Taehyeong Kim, Yeongrak Kim. 2023-03-14. A new formula of the determinant tensor with symmetries. https://arxiv.org/abs/2303.07845

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