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We characterize the set of extreme points of monotonic functions that are either majorized by a given function f or themselves majorize f and show that these extreme points play a crucial role in many ...
D. J. Hallenbeck, Convex Hulls and Extreme Points of Some Families of Univalent Functions, Transactions of the American Mathematical Society, Vol. 192 (May, 1974), pp. 285-292 ...