Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Uehling correction in muonic atoms exactly in Z\alpha   The Uehling correction to the energy levels is presented in terms of the
hypergeometric functions 2F1. This presentation allows to derived various
asymptotics and approximations. Further applications of this method to other
atomic characteristics are also considered.

2
The categories of this paper are: math
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ