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seen Dec 12 at 17:18

Nov
17
comment Inverse of a particular operator
What space are you acting the operator on? It is also likely to be unbounded. If you are looking at $C^\infty$ functions on $[0,1]$ for example, the sequence of functions $\sin(nx)$ should give a sequence whose uniform norm is unbounded when applying the operator.
Nov
17
asked $p$-stable Random Variables for $p>2$?
Nov
17
awarded  Nice Question
Oct
16
comment Find a subset of the real numbers
Yes, I understand that they are not open, I was trying to give a hint rather than the solution. But the problem asks for an open and dense subset of $\mathbb{R}$. No subset of the rationals would be open in $\mathbb{R}$.
Oct
16
comment Find a subset of the real numbers
A good starting question for you: Are the rationals open in the real numbers? If not, then you cannot use a subset of them.
Oct
16
answered Decoding / reverse engineering math content
Jul
2
awarded  Curious
Apr
28
revised Proof of integral inequality
Poster did not know Latex.
Apr
28
suggested approved edit on Proof of integral inequality
Apr
21
comment Limit of a Cosine Sequence
I chose the other for being very elementary, but I like this argument, it is a nice one to have in the back of my mind.
Apr
21
accepted Limit of a Cosine Sequence
Apr
21
comment Limit of a Cosine Sequence
I am choosing this one because the argument is nice in its simplicity. Thanks.
Apr
21
awarded  Yearling
Apr
21
comment Limit of a Cosine Sequence
In your formula for $\cos((n+1)x)$, you should have $\cos(x)$ and $\sin(x)$ on the right hand side, not 1.
Apr
21
asked Limit of a Cosine Sequence
Apr
21
accepted Valid Sobolev Norm on $\mathbb{R}$?
Jan
25
awarded  Nice Question
Nov
4
comment sequence of functions converges almost everywhere
Are you assuming boundedness?
Nov
4
comment Prove that $\lim_{n \to \infty} \int_0^2 e^{ x^2 / n}\,{\rm d}x$ exists and evaluate it.
The hint also tells you that the sequence is uniformly convergent as you asked for in the theorem you wanted to apply.
Nov
4
comment Prove that $\lim_{n \to \infty} \int_0^2 e^{ x^2 / n}\,{\rm d}x$ exists and evaluate it.
Dominated convergence theorem would work if you know it?