Optimal age replacement policy for discrete time parallel systems

Discussion of signature‐based models of preventive maintenance

“…The classical continuous age replacement model has been converted to discrete age replacement model by Nakagawa and Osaki 5 . Some recent discussions in this direction are presented in Eryilmaz 6 and Eryilmaz and Tank 7 . I would prefer to have a short section on discrete time models in the overview paper.…”

“…5 Some recent discussions in this direction are presented in Eryilmaz 6 and Eryilmaz and Tank. 7 I would prefer to have a short section on discrete time models in the overview paper.…”