Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two-Dilaton Theories in Two Dimensions from Dimensional Reduction   Dimensional reduction of generalized gravity theories or string theories
generically yields dilaton fields in the lower-dimensional effective theory.
Thus at the level of D=4 theories, and cosmology many models contain more than
just one scalar field (e.g. inflaton, Higgs, quintessence). Our present work is
restricted to two-dimensional gravity theories with only two dilatons which
nevertheless allow a large class of physical applications.
  The notions of factorizability, simplicity and conformal simplicity, Einstein
form and Jordan form are the basis of an adequate classification. We show that
practically all physically motivated models belong either to the class of
factorizable simple theories (e.g. dimensionally reduced gravity, bosonic
string) or to factorizable conformally simple theories (e.g. spherically
reduced Scalar-Tensor theories). For these theories a first order formulation
is constructed straightforwardly. As a consequence an absolute conservation law
can be established.

15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
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The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ