Filippo Giovagnini's user avatar
Filippo Giovagnini's user avatar
Filippo Giovagnini's user avatar
Filippo Giovagnini
  • Member for 4 years, 9 months
  • Last seen more than a week ago
17 votes
1 answer
663 views

Is the minimum of this functional $C^{\infty}$?

9 votes
2 answers
250 views

$x^m-1 \nmid f(x)$ in $\mathbb{Z}/p\mathbb{Z}[x]$ where $f(x)=(x+1)((x+1)^{2m}+(x+1)^{m}+1)$

9 votes
0 answers
149 views

Can I split $E$ in equal volume parts?

8 votes
1 answer
196 views

Is this operator between $\ell^{25}$ and $\ell^{12}$ continuous?

8 votes
1 answer
255 views

Solving $f(x)-f(x+\alpha)=g(x)$

7 votes
1 answer
242 views

Completeness of Besov spaces

7 votes
1 answer
201 views

Is $f:[a,b] \times \Omega \to E$ measurable?

5 votes
1 answer
161 views

If two Markov process have same $2$-dimensional distribution then they are equivalent

5 votes
1 answer
116 views

Has this energy a maximum in $B$?

5 votes
1 answer
193 views

Compute $\int_0^{+\infty}\frac{\sin x + \cos x}{x^4+1}dx$

4 votes
0 answers
158 views

Can I solve this Cauchy problem? If yes, how?

4 votes
0 answers
62 views

How can I show $C^{\infty}_c(\mathbb{R},\mathbb{R})$ is dense in $C^0(\mathbb{R},\mathbb{R})$?

4 votes
1 answer
787 views

Computing the Euler characteristic of real projective space $\mathbb{R}P^{n}$

4 votes
2 answers
362 views

What about the rank of this matrix?

4 votes
0 answers
209 views

Sharp constant in the $L^p$ regularity estimate?

3 votes
0 answers
51 views

How to prove that extensions of Sobolev functions if Sobolev?

3 votes
0 answers
110 views

Compute the fundamental group of this space

3 votes
0 answers
70 views

How to prove that $p$ is an Hermite polynomial?

3 votes
1 answer
287 views

Bochner's theorem using Lévy's theorem

3 votes
0 answers
82 views

A complex-valued function with a pole in $0$ cannot be bijective from $\mathbb{C}-\{0\}$ into $\mathbb{C}-\{0\}$

3 votes
1 answer
84 views

Studying the neighborhoods of a point

2 votes
0 answers
188 views

How can I prove $L^p(\Omega,\mathcal{E})$ is separable without assuming $\Omega=\mathbb{R}^N$?

2 votes
2 answers
127 views

Compute $\int_0^{+\infty} \frac{e^{-t}}{t^4+1}dt$

2 votes
1 answer
131 views

Density of $\mathbb{Z}[x]$ in $\{f \in C([0,1],\mathbb{R}): f(0),f(1) \in \mathbb{Z} \}$

2 votes
0 answers
180 views

How to prove that $\mathscr{H}$ is dense in $C_0$

2 votes
1 answer
47 views

How I can write a negligible compact set?

2 votes
1 answer
217 views

Why $\mathbb{E}[X\mid \sigma(\mathcal{H},\mathcal{E})]=\mathbb{E}[X\mid \mathcal{H}]$?

2 votes
1 answer
86 views

Why is this curve contained in a plane?

2 votes
1 answer
251 views

Why a martingale should have limit at infinity?

2 votes
1 answer
52 views

Why $\mathbb{E}[(S_{\tau}-\tau \mathbb{E}[\xi_1])^2]=\mathbb{E}[\tau] \sigma^2$?