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Results tagged with measure-theory
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user 156512
Questions about abstract measure and Lebesgue integral theory. Also concerns such properties as measurability of maps and sets.
0
votes
1
answer
112
views
Can we say that : $ \exists f_{\infty}\in L_{\mathbb{R}}^{1} \text{ such that: } f_n\to f_\i... [closed]
Let $(E,\mathcal{A},\mu)$ be a finite measure space and $\{f_n\}\subset L_{\mathbb{R}}^{1}$ such that:
$$
\sum_{i=2}^{\infty}{\int_{E}{|f_n(t)-f_{n-1}(t)|d\mu(t)}}<+\infty
$$
Can we say that :
$$
\exi …
- 115
0
votes
1
answer
121
views
$\sum_{n=1}^{\infty}{\frac{1}{n^{1+\epsilon}}\mathbb{E}\big((|X_n|\mathbb{1}_{|X_n|\leq n})^...
Let $(E,\mathcal{A},\mathbb{P})$ be a probability space $\{X_n\}$ be a sequence of random variable, such that:
$$
(1)~.~~~\sup_n\mathbb E (|X_n|)<\infty\Rightarrow
$$
$$
(2)~.~~~\dfrac{M_j}{2}<\int_ …
- 115
-4
votes
1
answer
66
views
Can we say that $\{f_n\}\text{ is uniformly integrable over }E\setminus (\cap_p B_p)$? [closed]
Let $(E,\mathcal{A},\mu)$ be probability space and $\{f_n\}$ be sequence of functions such that
$$
\sup_n\int_{E}|f_n|d\mu<+\infty.
$$
Let $\{B_p\}$ be a sequence non-increasing in $\mathcal{A}$ s …
- 115