Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Seven--Superform Gauge Fields in N=1, D=10 Supergravity and Duality   We present a formulation of $N=1,D=10$ Supergravity--Super--Maxwell theory in
superspace in which the graviphoton can be described by a 2--form $B_2$ or a
6--form $B_6$, the photon by a 1--form $A_1$ or a 7--form $A_7$ and the dilaton
by a scalar $\varphi$ or an 8--form $\varphi_8$, the supercurvatures of these
fields being related by duality. Duality interchanges Bianchi identities and
equations of motion for each of the three couples of fields. This construction
envisages the reformulation of $D=10$ Supergravity, involving 7--forms as gauge
fields, conjectured by Schwarz and Sen, which, upon toroidal compactification
to four dimensions, gives the manifestly $SL(2,R)_S$ invariant form of the
heterotic string effective action.

29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con