Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Construction of Superstrings in Wormhole-Like Backgrounds   We construct a class of superstring solutions in non trivial space-time. The
existence of an $N=4$ world-sheet superconformal symmetry stabilizes our
solutions under perturbative string loop corrections and implies in target
space some unbroken space-time supersymmetries.

28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph