Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Wavelet regularization of Euclidean QED   The regularization of quantum electrodynamics in the space of functions
$\psi_a(x)$, which depend on both the position $x$ and the scale $a$, is
presented. The scale-dependent functions are defined in terms of the continuous
wavelet transform in $\mathbb{R}^4$ Euclidean space, with the derivatives of
Gaussian served as basic wavelets. The vacuum polarization and the dependence
of the effective coupling constant on the scale parameters are calculated in
one-loop approximation in the limit $p^2 \gg 4m^2$.

10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol