Triple reverse order law of Drazin invertible operators


Safae Alaoui Chrifi, Abdelaziz Tajmouati




In this paper we study the triple reverse-order law (ABC) D = C D B D A D for the Drazin invertible operators A, B and C under the commutative relations [AB, B] = 0, [BC, B] = 0 and [AB, BC] = 0.