Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ultraviolet finiteness of Chiral Perturbation Theory for two-dimensional
  Quantum Electrodynamics   We consider the perturbation theory in the fermion mass (chiral perturbation
theory) for the two-dimensional quantum electrodynamics. With this aim, we
rewrite the theory in the equivalent bosonic form in which the interaction is
exponential and the fermion mass becomes the coupling constant. We reformulate
the bosonic perturbation theory in the superpropagator language and analyze its
ultraviolet behavior. We show that the boson Green's functions without vacuum
loops remain finite in all orders of the perturbation theory in the fermion
mass.

12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
19
The categories of this paper are: eess
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys