Published online by Cambridge University Press: 14 July 2016
Let {ξn , n ≧1} be a sequence of independent real random variables, F denote the common distribution function of identically distributed random variables ξn , n ≧1 and let ξ1 have an arbitrary distribution. Define Xn+ 1 = k max(Xn, ξ n +1), Yn + 1 = max(Yn, ξ n +1) – c, Un +1 = l min(Un, ξ n +1), Vn+ 1 = min(Vn, ξ n +1) + c, n ≧ 1, 0 < k < 1, l > 1, 0 < c < ∞, and X 1 = Υ1= U 1 = V 1 = ξ1. We establish conditions under which the limit law of max(X 1, · ··, Xn ) coincides with that of max(ξ2, · ··, ξ n+ 1) when both are appropriately normed. A similar exercise is carried out for the extreme statistics max(Y 1, · ··, Yn ), min(U 1,· ··, Un ) and min(V 1, · ··, Vn ).
Research supported by the National Board for Higher Mathematics, Bombay.