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Mathematics
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P. Quinton
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question
13
Any reference on Jensen inequality for measurable convex functions on a Banach space?
Sep 29, 2022
answer
8
What is the expectation of $X$ given $X$
Oct 20, 2018
question
6
Can the set of sequences such that $\frac{b_n}{a_n}$ is unbounded be specified by a countable base of sequences $\{f_n\}$
Dec 15, 2023
answer
6
Need hints (advice) to prove $(\forall a,b,c,d \in \mathbb{R}) (a < b \wedge c<d) \Rightarrow ad+bc < ac +bd$
Feb 18
answer
6
Does there exist random variables such that any strict subset of $\{ X_1, X_2, ... X_n\}$ is independent but $X_1, X_2, ... X_n$ are not independent?
Sep 16, 2018
question
5
Best rank-$1$ approximation of matrix with condition.
Feb 28, 2023
answer
5
Does $ x^\dagger M x = \alpha \; x^\dagger x,$ imply $M x = \alpha x$?
Aug 10, 2022
question
5
Extreme concave function on the simplex
Mar 17, 2021
question
5
About a result by Hardy-Littlewood-Polya-Blackwell-Stein-Sherman-Cartier on two order operators.
Apr 25, 2021
answer
5
Formulas for Trace expressions like $\operatorname{Tr}(AA^TA)$ for Gaussian $A$
Dec 5, 2023