Order preserving maps on the poset of upper triangular idempotent matricesFošner, Ajda (Avtor) mathematicslinear algebramatrix theorytriangular matricesupper triangular idempotent matricesautomorphisms of the posetorthogonality preserversorder20052012-06-07 12:46:40Neznano36020UDK: 512.643COBISS_ID: 14048776NUK URN: URN:SI:UM:DK:48L3WQHQsl