Bi-monotone maps on the set of all variance-covariance matrices with respect to minus partial orderDolinar, Gregor (Avtor) Ilišević, Dijana (Avtor) Kuzma, Bojan (Avtor) Marovt, Janko (Avtor) integer partitionyoung diagramirreducible characterimmanant alternate matrixLet ▫$H^+_n({\mathbb R})$▫ be the cone of all positive semidefinite ▫$n \times n$▫ real matrices. We describe the form of all surjective maps on ▫$H^+_n({\mathbb R})$▫, ▫$n \ge 3$▫, that preserve the minus partial order in both directions.20252025-07-05 03:07:23Znanstveno delo93600sl