%0 Journal Article %T Dependence of multivariate extremes %A Clara Viseu %A Lu¨Ēsa Pereira %A Ana Paula Martins %A Helena Ferreira %J Mathematics %D 2010 %I arXiv %X We give necessary and sufficient conditions for two sub-vectors of a random vector with a multivariate extreme value distribution, corresponding to the limit distribution of the maximum of a multidimensional stationary sequence with extremal index, to be independent or totally dependent. Those conditions involve first relations between the multivariate extremal indexes of the sequences and secondly a coefficient that measure the strength of dependence between both sub-vectors. The main results are illustrated with an auto-regressive sequence and a 3-dependent sequence. %U http://arxiv.org/abs/1006.1602v1