The theory of copulas is by now a very well established one. Recently, larger classes of functions C : [0, 1]n â†’ [0, 1], that are increasing in each variable and satisfy some conditions at theâ€¦ (More)

For a given bivariate survival function F, we study the relations between the set of the level curves of F and the Kendall distribution. Then we characterize the survival models simultaneouslyâ€¦ (More)

In this paper we consider sufficient conditions in order to stochastically compare random vectors of multivariate mixture models. In particular we consider stochastic and convex orders, theâ€¦ (More)

We consider a pair of exchangeable lifetimes X, Y and the families of the conditional survival functions F t (x, y) of (Xâˆ’ t, Y âˆ’ t) given (X > t, Y > t). We analyze some properties of dependence andâ€¦ (More)

In this paper, we introduce the concepts of average and projected systems associated to a coherent (parent) system. We analyze several aspects of these notions and show that they can be useful toolsâ€¦ (More)

We point out how capacities (non-additive measures) can be used to provide explanations about the concept of bivariate ageing function. The latter had been introduced to describe the family of theâ€¦ (More)

Considering a semicoherent system made up of n components having i.i.d. continuous lifetimes, Samaniego defined its structural signature as the n-tuple whose k-th coordinate is the probability thatâ€¦ (More)