Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On Restricted Weyl Symmetry   We discuss the physics of a restricted Weyl symmetry in a curved space-time
where a gauge parameter $\Omega(x)$ of Weyl transformation satisfies a
constraint $\Box \Omega = 0$. First, we present a model of QED where we have a
restricted gauge symmetry in the sense that a $U(1)$ gauge parameter
$\theta(x)$ obeys a similar constraint $\Box \theta = 0$ in a flat Minkowski
space-time. Next, it is precisely shown that a global scale symmetry must be
spontaneously broken at the quantum level. Finally, we discuss the origin of
the restricted Weyl symmetry and show that its symmetry can be derived from a
full Weyl symmetry by taking a gauge condition $R = 0$ in the BRST formalism.

6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con