AGING FUNCTIONS AND MULTIVARIATE NOTIONS OF NBU AND IFR
نویسندگان
چکیده
منابع مشابه
Aging Functions and Multivariate Notions of Nbu and Ifr
For d ≥ 2, let X = (X1, . . . , Xd)be a vector of exchangeable continuous lifetimes with joint survival function F. For such models, we study some properties of multivariate aging of F that are described by means of the multivariate aging function BF , which is a useful tool for describing the level curves of F. Specifically, the attention is devoted to notions that generalize the univariate co...
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Recently Bassan and Spizzichino (1999) have given some new concepts of multivariate aging for exchangeable random variables, such as a special type of bivariate IFR, by comparing distributions of residual lifetimes of dependent components of different ages. In the same vein, we further study some properties of concepts of IFR in the bivariate case. Then we introduce concepts of bivariate DMRL a...
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writing an academic article requires the researchers to provide support for their works by learning how to cite the works of others. various studies regarding the analysis of citation in m.a theses have been done, while little work has been done on comparison of citations among elt scopus journal articles, and so the dearth of research in this area demands for further investigation into citatio...
Linear Functions Preserving Multivariate and Directional Majorization
Let V and W be two real vector spaces and let &sim be a relation on both V and W. A linear function T : V → W is said to be a linear preserver (respectively strong linear preserver) of &sim if Tx &sim Ty whenever x &sim y (respectively Tx &sim Ty if and only if x &sim y). In this paper we characterize all linear functions T : M_{n,m} → M_{n,k} which preserve or strongly preserve multivariate an...
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ژورنال
عنوان ژورنال: Probability in the Engineering and Informational Sciences
سال: 2010
ISSN: 0269-9648,1469-8951
DOI: 10.1017/s026996480999026x