Abstract
In this paper, the limitations of Lemma 4.4 and Theorem 4.6 in 'Partially symmetric nonnegative rectangular tensors and copositive rectangular tensors' (J. Ind. Manag. Optim., 15(2) (2019), 775-789) are highlighted. New bounds of the minimum $ H^+ $-singular value are proposed to verify the (strict) copositiveness of rectangular tensors.
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