We offer a counterexample to a conjecture concerning the permanent of positive semidefinite matrices. The counterexample is a 4 × 4 complex correlation matrix.
@article{bwmeta1.element.doi-10_1515_spma-2017-0022,
author = {George Hutchinson},
title = {A counterexample to the Drury permanent conjecture},
journal = {Special Matrices},
volume = {5},
year = {2017},
pages = {301-302},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.doi-10_1515_spma-2017-0022}
}
George Hutchinson. A counterexample to the Drury permanent conjecture. Special Matrices, Tome 5 (2017) pp. 301-302. http://gdmltest.u-ga.fr/item/bwmeta1.element.doi-10_1515_spma-2017-0022/