Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Conservation laws and angular transverse shifts of the reflected and
  transmitted light beams   The relation between the angular transverse shifts of the beams reflected and
transmitted at a plane interface of two isotropic transparent media is
established. The derivation of this relation is based on the conservation law
of the transverse component of the Minkowski linear momentum, which takes place
in the processes of the reflection and transmission of wave packets.

5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph