The Annals of Probability, Vol. 7, No. 6 (Dec., 1979), pp. 1051-1055 (5 pages) An inequality for certain random sequences more general than martingales or nonnegative submartingales is proved. Three ...
Proceedings of the American Mathematical Society, Vol. 110, No. 3 (Nov., 1990), pp. 721-726 (6 pages) A very simple proof is given of the sort of square function estimates provided by the T(b) theorem ...