George A. Hutchinson
Abstract
Abstract We offer a counterexample to a conjecture concerning the permanent of positive semidefinite matrices. The counterexample is a 4 × 4 complex correlation matrix.
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Abstract We offer a counterexample to a conjecture concerning the permanent of positive semidefinite matrices. The counterexample is a 4 × 4 complex correlation matrix.
Key concepts: Counterexample, Conjecture, Mathematics, Positive-definite matrix, Matrix (chemical analysis), Combinatorics, Semidefinite programming, Pure mathematics