eprintid: 705 rev_number: 8 eprint_status: archive userid: 19 dir: disk0/00/00/07/05 datestamp: 2011-07-06 09:22:43 lastmod: 2011-07-11 14:37:42 status_changed: 2011-07-06 09:22:43 type: article metadata_visibility: show item_issues_count: 0 creators_name: Foschi, Rachele creators_name: Spizzichino, Fabio creators_id: rachele.foschi@imtlucca.it creators_id: title: Semigroups of Semi-copulas and Evolution of Dependence at Increase of Age ispublished: pub subjects: QA subjects: QA75 divisions: EIC full_text_status: none abstract: We consider a pair of exchangeable lifetimes X, Y and the families of the conditional survival functions F t (x, y) of (X − t, Y − t) given (X > t, Y > t). We analyze some properties of dependence and of ageing for F t (x, y) and some relations among them date: 2008 date_type: published publication: Mathware & Soft Computing volume: 15 number: 1 publisher: Seccio de Matematiques i Informatica, E.T.S. d'Arquitectura, Universitat Politecnica pagerange: 95-111 refereed: TRUE issn: 1134-5632 official_url: http://ic.ugr.es/Mathware/index.php/Mathware/article/viewFile/35/20 citation: Foschi, Rachele and Spizzichino, Fabio Semigroups of Semi-copulas and Evolution of Dependence at Increase of Age. Mathware & Soft Computing, 15 (1). pp. 95-111. ISSN 1134-5632 (2008)