598 reputation
214
bio website
location
age
visits member for 2 years
seen yesterday

Aug
24
awarded  Yearling
Jul
18
revised Real Hardy space question
added a second attempt
Jul
15
comment Hardy Space Cancellation Condition
@ Guillermo - I also don't follow the mean value theorem line; if $x_b/t$ lies in the line segment between the points $x/t$ and $(y+b_0)/t$, then shouldn't the RHS be something like \begin{equation}\frac{1}{t^{n+1}}(y+b_0-x)\cdot\phi'(x_b/t)?\end{equation}
Jul
15
revised Real Hardy space question
updated my attempt
Jul
14
comment Hardy Space Cancellation Condition
@ Guillermo - I don't understand why we integrate over $y+B$, shouldn't we be integrating over $B(y, t)$ and is $b_0\in\mathbb{R}^n$ chosen so that $|y+b_0|\geq t$?
Jul
12
comment Hardy Space Cancellation Condition
@ Guillermo - what is $b_0$?
Jul
10
revised Constructing a specific normalised test function.
edited tags
Jul
10
asked Real Hardy space question
Jul
5
comment Constructing a specific normalised test function.
Yes, I thought of rescaling $\phi$ but then while $\|D\psi\|_{\infty}\leq 1$ I don't have that $\psi$ is a normalised test function.
Jul
4
comment Constructing a specific normalised test function.
@Voliar- as in normalised test functions must integrate over $\mathbb{R^n}$ to equal 1.
Jul
4
comment Constructing a specific normalised test function.
@Voliar I was using a positive test function $\phi$ in my work.
Jul
4
revised Constructing a specific normalised test function.
added 26 characters in body
Jul
4
revised Constructing a specific normalised test function.
added 26 characters in body
Jul
4
comment Constructing a specific normalised test function.
@ Voliar - Sorry, my mistake... I meant $\int \phi(x)\ \mathrm{d}x=1$...I've fixed this in the question.
Jul
4
asked Constructing a specific normalised test function.
Jul
2
awarded  Curious
Jun
17
comment Show that $(\log |x|)^2\notin \text{BMO}([-1,1])$.
Thanks, I followed my idea with $Q_n\equiv[0, 1/n]$ and got $u\notin\text{BMO}$ but as you said it suffices to work with estimates. Thanks.
Jun
17
accepted Show that $(\log |x|)^2\notin \text{BMO}([-1,1])$.
Jun
15
revised Show that $(\log |x|)^2\notin \text{BMO}([-1,1])$.
deleted 3 characters in body
Jun
13
revised Show that $(\log |x|)^2\notin \text{BMO}([-1,1])$.
added 1 character in body