Reputation
1,826
Next privilege 2,000 Rep.
Edit questions and answers
Badges
1 9 19
Newest
 Quorum
Impact
~21k people reached

  • 0 posts edited
  • 0 helpful flags
  • 147 votes cast
Sep
17
revised What are Reinert's reproaches to the Ricardo theory?
added 17 characters in body
Sep
17
revised What are Reinert's reproaches to the Ricardo theory?
added 1 character in body
Sep
17
awarded  Nice Question
Sep
17
revised What are Reinert's reproaches to the Ricardo theory?
deleted 1 character in body
Sep
17
revised What are Reinert's reproaches to the Ricardo theory?
added 1942 characters in body
Sep
16
comment What are Reinert's reproaches to the Ricardo theory?
And which reading do you recommend?
Sep
16
comment What are Reinert's reproaches to the Ricardo theory?
Who is the author? Ethier?
Sep
16
comment What are Reinert's reproaches to the Ricardo theory?
Does this mean that the theory that I am looking for (without those paradoxes) exists?
Sep
16
revised What are Reinert's reproaches to the Ricardo theory?
edited title
Sep
16
revised What are Reinert's reproaches to the Ricardo theory?
added 4 characters in body
Sep
16
asked What are Reinert's reproaches to the Ricardo theory?
Sep
10
comment Uniform definition of $S(\mathbb{R})$ and $S(\mathbb{Q}_p)$
For any LCA-group $G$ the multiplication by a real character on $\widehat{G}$ corresponds to the differentiation over a one-parametric subgroup in $G$, that's why I am speaking about polynomials. I don't know whether the multiplication by $|x|^k$ gives the same class of functions, I don't have intuition in $p$-adic fields.
Sep
7
comment Uniform definition of $S(\mathbb{R})$ and $S(\mathbb{Q}_p)$
Yes, this seems to be true, if we change a bit the definition of a polynomial: $p$ must be locally representable as a finite linear combination of finite products of real characters.
Sep
7
comment Uniform definition of $S(\mathbb{R})$ and $S(\mathbb{Q}_p)$
Your question is very vague... I can formulate a hypothesis: perhaps ${\mathcal S}(G)$ is the subspace in $L_2(G)$ consisting of functions $f:G\to{\mathbb C}$ such that $f$ and its Fourier transform $\hat{f}$ rest in $L_2$ after being multiplied by any polynomial $p$ (where a polynomial on $G$ is a linear combination of finite poducts of real characters, i.e. continuous homomorphisms $r:G\to{\mathbb R}$). I don't know, whether this is more intuitively reasonable (and whether this is true).
Sep
7
answered Uniform definition of $S(\mathbb{R})$ and $S(\mathbb{Q}_p)$
Aug
6
comment Image of a Jordan compact set under a degenerate map
Igor, as far as I understand, Hajlasz proves that the $m$-th Hausdorff measure of $\varphi(K)$ vanishes, but why does this mean, that $T$ exists?
Aug
6
revised Image of a Jordan compact set under a degenerate map
added 3 characters in body
Aug
6
comment Image of a Jordan compact set under a degenerate map
I would not recognize. And I am afraid, I need somebody to explain this. Is there a simple way to prove this proposition, without entering this deep theory?
Aug
6
revised Image of a Jordan compact set under a degenerate map
deleted 2 characters in body
Aug
6
asked Image of a Jordan compact set under a degenerate map