Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Remarks on string solitons   We consider generalized self-duality equations for U(2r) Yang-Mills theory on
R^8 with quaternionic structure. We employ the extended ADHM method in eight
dimensions to construct exact soliton solutions of the low-energy effective
theory of the heterotic string.

4
The categories of this paper are: cond-mat
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph