Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: New Riemannian manifolds with $L^p$-unbounded Riesz transform for $p >
  2$   We construct a large class of Riemannian manifolds of arbitrary dimension
with Riesz transform unbounded on $L^p(M)$ for all $p > 2$. This extends recent
results for Vicsek manifolds, and in particular shows that fractal structure is
not necessary for this property.

36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat