If $ (X_n,\mathcal{F_n})_{n\in \mathbb{N}}$ is a martingale such that $ \forall$ n $ \in \mathbb{N}, \frac{X_{n+1}}{X_n}\in L^1$ what can be said about $ \mathbb{E}[\frac{X_{n+1}}{X_n}]$ ?Read more
Blog
Satisfaction guarantee
Best Proxy Packs
-
2,000 Private Proxies
$600.00$299.00 / month -
1,000 Private Proxies
$360.00$179.00 / month
Like And Follow Us
