Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Square function characterization of weak Hardy spaces   We obtain a new square function characterization of the weak Hardy space
$H^{p,\infty}$ for all $p\in(0,\iy)$. This space consists of all tempered
distributions whose smooth maximal function lies in weak $L^p$. Our proof is
based on interpolation between $H^p$ spaces. The main difficulty we overcome is
the lack of a good dense subspace of $H^{p,\infty}$ which forces us to work
with general $H^{p,\infty}$ distributions.

18
The categories of this paper are: econ
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg