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A stochastic process is a collection of random variables usually indexed by a totally ordered set.

2 votes
0 answers
142 views

Bounds on moving average process

Let $X_1,X_2,\dotsc$ be a sequence of i.i.d. random variables and define the average process $\{Y_t\}$ as $$ Y_t = \sum_{i=1}^p a_k X_{t-i} $$ with some constants $a_1,\cdots,a_p \in \mathbb{R}$. This …
Manuel Schmidt's user avatar
5 votes
1 answer
647 views

Proof of Pinelis (1992) - Banach space inequalities

I am reading Pinelis "An approach to inequalities for the distributions of infinite -dimensional martingales" and cannot follow his proof of Theorem 3: Let $(f_n)$ be a martingale in a separable Bana …
Manuel Schmidt's user avatar