1. A proof of a conjectured determinantal inequality.
- Author
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Ghabries, Mohammad M., Abbas, Hassane, Mourad, Bassam, and Assi, Abdallah
- Subjects
- *
MATHEMATICAL equivalence , *MATRICES (Mathematics) , *LOGICAL prediction , *EIGENVALUES - Abstract
The main goal of this paper is to prove the following determinantal inequality: det (A k + | B s 2 A s 2 | 2 t s ) ≤ det (A k + A t B t) ≤ det (A k + | A s 2 B s 2 | 2 t s ) for any positive semi-definite matrices A and B , and for all 0 ≤ t ≤ s ≤ k. It generalizes several known determinantal inequalities, and one main consequence of it confirms Lin's conjecture which states that for positive semi-definite matrices A and B , det (A 2 + A t B t) ≤ det (A 2 + | A B | t) for 0 ≤ t ≤ 2. We conclude with another related determinantal inequality. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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