数学季刊 ›› 2006, Vol. 21 ›› Issue (3): 434-442.
摘要: There are several important generalizations of martingales such as games fairer with time, quasi-mils and sequential martingales in the limit. In the note, we shall consider all possible structures of a probability space (Ω, A, (An), P) associated with a stochastic basis(An) of subσ-fields of A with An↑A. Then, we shall apply them to establish some comparison results for the aforementioned generalizations of martingales.
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