Zoltan

Unregistered less info
21 reputation
3
bio website
location
age
visits member for 1 year, 3 months
seen Feb 6 '13 at 18:41

Jan
23
revised Ring homomorphism is injective if and only if the induced maps on localizations are injective
added 43 characters in body
Jan
23
comment Ring homomorphism is injective if and only if the induced maps on localizations are injective
Thanks! I really confused between prime ideal and what I really wanted.
Jan
23
awarded  Editor
Jan
23
revised Ring homomorphism is injective if and only if the induced maps on localizations are injective
added 43 characters in body
Jan
23
comment Ring homomorphism is injective if and only if the induced maps on localizations are injective
I see your point. It should be the set of all powers of $\phi(p)$.
Jan
23
comment Ring homomorphism is injective if and only if the induced maps on localizations are injective
The $p's$ are any element of $A$. I am localizing the powers of a single element.
Jan
23
asked Ring homomorphism is injective if and only if the induced maps on localizations are injective
Jan
13
comment On functions in $L^p$
Thanks! Do you know why they give this hint, if the answer is that simple? There is a second part of this question asking to find a function in $L^p$ if and only if $p_0\leq p \leq p_1$. Maybe it is useful for this second part?
Jan
13
asked On functions in $L^p$
Jan
12
comment On the convergence of an improper integral
Thanks that's what I thought! But I got confused by one of Folland's Real analysis exercises. In chapter 6, he asks, if $0<p_0<p_1\leq\infty$, find an example of functions $f$ on $(0,\infty)$ such that $f\in L^p$ iff $p_0<p<p_1$. As an hint, he says to consider functions of the form $f(x)= x^{-a}|log\,x|^b$. But these functions are never in $L^p$!
Jan
12
awarded  Scholar
Jan
12
accepted On the convergence of an improper integral
Jan
11
awarded  Student
Jan
11
asked On the convergence of an improper integral