João Victor Bateli Romão
  • Member for 6 years, 3 months
  • Last seen more than 2 years ago
  • Brazil
2 answers
11 votes
772 views
3 bookmarks
What is the right way to define a function?
2 answers
8 votes
460 views
4 bookmarks
Linear transformation $T$ such that for every extension $\overline{T}$, $\|\overline{T}\|>\|T\|$.
0 answers
4 votes
268 views
1 bookmarks
How close is Mazur's Separation Theorem and the 2nd geometric form of HBT?
1 answers
4 votes
119 views
1 bookmarks
Where are the points of $\{z^{z}\in \mathbb{R}|z\in\mathbb{C}\}$?
3 answers
4 votes
928 views
2 bookmarks
Prove that $\lim f_n(x_n) = f(x), x_n\rightarrow x,$ then $f_n\rightarrow f$ uniformly on compact
2 answers
3 votes
71 views
Condition for inverse of quadratic function - alternative solutions
1 answers
2 votes
192 views
Mazur Lemma for sequence of Lipschitz functions
1 answers
2 votes
51 views
What does $M$-equivalent basis mean?
3 answers
2 votes
556 views
Is there a additive non-linear non-complex map?
1 answers
1 votes
80 views
1 bookmarks
Evaluation of convolutions by Fejér kernels have finite-dimentional range?
0 answers
1 votes
69 views
How to prove $\lim\limits_{x\rightarrow\infty}f(x)=0$ and $\lim\limits_{x\rightarrow\infty}f''(x)=0\Rightarrow\lim\limits_{x\rightarrow\infty}f'(x)$?
2 answers
0 votes
435 views
If $T$ is normal and $T^2=-I$, then T is unitary
0 answers
0 votes
141 views
Is a polynomial normal ODE system solution a real-analytic function?
3 answers
0 votes
148 views
Can partially constant functions be analytic?