Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Symmetry Algebra of IIB Superstring Scattering   The graviton scattering in IIB superstring theory is examined in the context
of S-duality and symmetry. There is an algebra that generates all of the terms
in the four-point function to any order in derivatives. A map from the algebra
to the scattering is given; it suggests the correctness of the full four-point
function with the S-duality. The higher point functions are expected to follow
a similar pattern.

18
The categories of this paper are: econ
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
17
The categories of this paper are: q-fin