Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optical geometry analysis of the electromagnetic self-force   We present an analysis of the behaviour of the electromagnetic self-force for
charged particles in a conformally static spacetime, interpreting the results
with the help of optical geometry. Some conditions for the vanishing of the
local terms in the self-force are derived and discussed.

15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int