We generalize the notion of essential closures and use them to formulate a geometric necessary condition for a set to be the support of a multivariate copula. Furthermore, in some special cases, we derive an explicit formula of the support in terms of essential closures and obtain a stronger necessary condition. (C) 2012 Elsevier Inc. All rights reserved.
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Univ Almeria, Grp Invest Anal Matemat, La Canada De San Urbano 04120, Almeria, SpainUniv Almeria, Dept Estadist & Matemat Aplicada, La Canada De San Urbano 04120, Almeria, Spain
Fernandez-Sanchez, Juan
Nelsen, Roger B.
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Lewis & Clark Coll, Dept Math Sci, Portland, OR 97219 USAUniv Almeria, Dept Estadist & Matemat Aplicada, La Canada De San Urbano 04120, Almeria, Spain
Nelsen, Roger B.
Ubeda-Flores, Manuel
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Univ Almeria, Dept Estadist & Matemat Aplicada, La Canada De San Urbano 04120, Almeria, SpainUniv Almeria, Dept Estadist & Matemat Aplicada, La Canada De San Urbano 04120, Almeria, Spain
机构:
Nanchang Inst Technol, Sch Business Adm, Nanchang 330099, Jiangxi, Peoples R ChinaNanchang Inst Technol, Sch Business Adm, Nanchang 330099, Jiangxi, Peoples R China
Xie, Jiehua
Fang, Jun
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Peking Univ, Dept Financial Math, Beijing 100871, Peoples R ChinaNanchang Inst Technol, Sch Business Adm, Nanchang 330099, Jiangxi, Peoples R China
Fang, Jun
Yang, Jingping
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Peking Univ, Dept Financial Math, LMEQF, Beijing 100871, Peoples R ChinaNanchang Inst Technol, Sch Business Adm, Nanchang 330099, Jiangxi, Peoples R China
Yang, Jingping
Bu, Lan
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Peking Univ, Dept Financial Math, Beijing 100871, Peoples R ChinaNanchang Inst Technol, Sch Business Adm, Nanchang 330099, Jiangxi, Peoples R China