Davide Giraudo

Strasbourg, France

https://sites.google.com/site/davidegiraudomathematics/home

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Approximating a $\sigma$-algebra by a generating algebra

measure-theory asked Nov 4, 2012 at 17:27

math.stackexchange.com

61 votes

"It looks straightforward, but actually it isn't"

soft-question big-list asked Jun 9, 2013 at 10:42

math.stackexchange.com

35 votes

"Too simple to be true"

proof-strategy big-list fake-proofs asked Dec 27, 2012 at 10:58

math.stackexchange.com

25 votes

Collection of standard facts about convergence of random variables

sequences-and-series probability-theory convergence random-variables big-list asked Jun 17, 2018 at 9:45

math.stackexchange.com

19 votes

Closure of the invertible operators on a Banach space

functional-analysis banach-spaces operator-theory banach-algebras asked Dec 16, 2011 at 18:12

math.stackexchange.com

17 votes

Playing Risk in an arbitrary graph

game-design risk game-development asked Nov 30, 2011 at 19:44

boardgames.stackexchange.com

16 votes

How to efficiently proofread a mathematical paper?

publications mathematics productivity proofreading asked Mar 15, 2017 at 14:30

academia.stackexchange.com

14 votes

Is the conditional expectation a contraction in weak $\mathbb L^p$ spaces?

pr.probability fa.functional-analysis inequalities asked Jan 27, 2015 at 14:50

mathoverflow.net

10 votes

Openings in King of the Hill

opening chess-variants king-of-the-hill asked May 31, 2019 at 14:03

chess.stackexchange.com

9 votes

Rosenthal like inequality for weak $\mathbb L^p$-norms

pr.probability fa.functional-analysis banach-spaces inequalities martingales asked Jan 25, 2014 at 20:46

mathoverflow.net

Top Answers

246

Compute $\int \frac{\sin(x)}{\sin(x)+\cos(x)}\mathrm dx$

math.stackexchange.com

206

Limit of $L^p$ norm

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Monotone Convergence Theorem for non-negative decreasing sequence of measurable functions

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Proof of Frullani's theorem

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Is there a bijective map from $(0,1)$ to $\mathbb{R}$?

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$L^p$ and $L^q$ space inclusion

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Does $ \int_0^{\infty}\frac{\sin x}{x}dx $ have an improper Riemann integral or a Lebesgue integral?

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Find the limit $\lim \limits_{n\to \infty }\cos \left(\pi\sqrt{n^{2}-n} \right)$

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Is the product of two Gaussian random variables also a Gaussian?

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Bounded variation, difference of two increasing functions

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Steinhaus theorem (sums version)

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"Every linear mapping on a finite dimensional space is continuous"

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Convergence of random variables in probability but not almost surely.

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How to show path-connectedness of $GL(n,\mathbb{C})$

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Prove the map has a fixed point

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Approximating a $\sigma$-algebra by a generating algebra

math.stackexchange.com

Prove: $\int_0^\infty \sin (x^2) \, dx$ converges.

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Showing the inequality $|\alpha + \beta|^p \leq 2^{p-1}(|\alpha|^p + |\beta|^p)$

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Is the function $e^{x^2/2} \Phi(x)$ monotone increasing?

mathoverflow.net

Derivative of convolution

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Max dimension of a subspace of singular $n\times n$ matrices

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Strong and weak convergence in $\ell^1$

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Matrix exponential convergence

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Continuous functions on $[0,1]$ is dense in $L^p[0,1]$ for $1\leq p< \infty$

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Does $\sum\limits_{n=1}^\infty\frac{1}{\sqrt{n}+\sqrt{n+1}}$ converge?

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Convergence in measure of products

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Showing $\left|\frac{a+b}{2}\right|^p+\left|\frac{a-b}{2}\right|^p\leq\frac{1}{2}|a|^p+\frac{1}{2}|b|^p$

math.stackexchange.com

I screwed up a talk - how to move on

academia.stackexchange.com

Number of $\sigma$ -Algebra on the finite set

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How to prove that an operator is compact?

math.stackexchange.com