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Bibliographic Details
Main Authors: Mańdziuk, Tomasz, Ventura, Emanuele
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2411.05721
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Table of Contents:
  • One of the fundamental open problems in the field of tensors is the border Comon's conjecture: given a symmetric tensor $F\in(\mathbb{C}^n)^{\otimes d}$ for $d\geq 3$, its border and symmetric border ranks are equal. In this paper, we prove the conjecture for large classes of concise tensors in $(\mathbb{C}^n)^{\otimes d}$ of border rank $n$, i.e., tensors of minimal border rank. These families include all tame tensors and all tensors whenever $n\leq d+1$. Our technical tools are border apolarity and border varieties of sums of powers.