scholarly journals Triple reverse order law of Drazin invertible operators

Filomat ◽  
2021 ◽  
Vol 35 (1) ◽  
pp. 147-155
Author(s):  
Safae Chrifi ◽  
Abdelaziz Tajmouati

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

1974 ◽  
Vol 8 (4) ◽  
pp. 345-349 ◽  
Author(s):  
David T. Barwick ◽  
Jimmie D. Gilbert

2011 ◽  
Vol 204 (2) ◽  
pp. 123-136 ◽  
Author(s):  
Nebojša Č. Dinčić ◽  
Dragan S. Djordjević ◽  
Dijana Mosić

2010 ◽  
Vol 217 (1) ◽  
pp. 105-109 ◽  
Author(s):  
Dragana S. Cvetković-Ilić ◽  
Vladimir Pavlović

2016 ◽  
Vol 31 ◽  
pp. 492-510
Author(s):  
Chunyuan Deng

The main topic of this paper is the group invertibility of operators in Hilbert spaces. Conditions for the existence of the group inverses of products of two operators and the group invertibility of anti-triangular block operator matrices are studied. The equivalent conditions related to the reverse order law for the group inverses of operators are obtained.


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