The determinant and inverse conjecture for E0_2-matrices

From papers

Let ARn×nA\in\mathbb{R}^{n\times n} be an E02\mathbf{E_{0_2}}-matrix.

Determinant and inverse conjecture. One has

det(A)<0,\det(A)<0,

A1A^{-1} exists, and A1A^{-1} is a Z\mathbf{Z}-matrix.

This is one of the conjectures proposed after examples and observations about E02\mathbf{E_{0_2}}-matrices. The supplied text gives no evidence of a proof or refutation, so its resolution remains open.

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Sources & referencesView supporting material

Primary source

Bharat Pratap Chauhan and Dipti Dubey, “On semimonotone matrices of exact order two”, arXiv:2603.00639 (2026).

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