Lebtahi Ep-Kadi-Hahifi, Leila; Patrício, Pedro; Thome, Néstor(Taylor & Francis: STM, Behavioural Science and Public Health Titles, 2013)
In this article, the existence of the Drazin (group) inverse of an element a in
a ring is analysed when amk ¼ kan
, for some unit k and m, n 2 N. The same
problem is studied for the case when a* ¼ kamk1 and for the {k, ...