On some generalized ageing orderings
  Some partial orderings which compare probability distributions with the expo- nential distribution, are found to be very useful to understand the phenomenon of ageing. Here, we introduce some new generalized partial orderings which de- scribe the same kind of characterization of some generalized ageing classes. We give some equivalent conditions for each of the orderings. Inter-relations among the generalized orderings have also been discussed. 
Asok K. Nanda, Nil Kamal Hazra, D.K. Al-Mutairi and M.E. Ghitany
stat.AP