User madprob - Mathematics Meta Stack Exchange

madprob

Member for 10 years
Last seen more than 3 years ago

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rafaelstern.science
São Carlos - State of São Paulo, Brazil

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Searching for sexy problems.

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Jun 27, 2012

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26

Why is the Fisher Information matrix positive semidefinite?

15

Prove there exists no uniform distribution on a countable and infinite set.

10

Markov chains- recurrence and transience

8

Existence of non-trivial ultrafilter closed under countable intersection

6

Are $|X|$ and $\operatorname{sgn}(X)$ independent?