Shaked, Moshe; Tong, Y. L. - In: Journal of Multivariate Analysis 24 (1988) 2, pp. 330-340
It is shown that: If (X1, X2) is a permutation invariant central convex unimodal random vector and if A is a symmetric (about 0) permutation invariant convex set then P{(aX1, X2/a) [set membership, variant] A} is nondecreasing as a varies from )+ to 1 and is non-increasing as a varies from 1 to...