Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Uniqueness theorem for static phantom wormholes in
  Einstein-Maxwell-dilaton theory   We prove a uniqueness theorem for traversable wormhole solutions in the
Einstein-Maxwell-dilaton gravity with a phantom scalar field and a possible
phantom electromagnetic field. In a certain region of the parameter space,
determined by the asymptotic values of the scalar field and the lapse function,
the regular wormholes are completely specified by their mass, scalar charge and
electric charge. The argument is based on the positive energy theorem applied
on an appropriate conformally transformed Riemannian space.

26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga