摘要:
Backword Martingale Theorems Def: A series of r.v of index \(n\in\{-1,-2,\cdots\}\) is a Backward Martingale if \[\mathbb{E}(X_n|\mathcal{F}_{n-1})=X_ 阅读全文
posted @ 2026-09-24 20:13
ChillmanLee
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