Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Einstein's unified field theory predicts the equilibrium positions of n
  wires run by steady electric currents   A particular exact solution of Einstein's Hermitian theory of relativity is
examined, after recalling that there is merit in adding phenomenological
sources to the theory, and in choosing the metric like it was done long ago by
Kursunoglu and Hely. It is shown by intrinsic arguments, relying on the
properties of the chosen metric manifold, that the solution describes in
Einstein's theory the field of n thin parallel wires at rest, run by steady
electric currents, and predicts their equilibrium positions through the
injunction that the metric must display cylindrical symmetry in the
infinitesimal neighbourhood of each wire. In the weak field limit the
equilibrium positions coincide with the ones prescribed by Maxwell's
electrodynamics.

11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an