Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quintessence with Coupled Scalar Fields   We discuss the dynamics of a quintessence model involving two coupled scalar
fields. The model presents two types of solutions, namely solutions that
correspond to eternal and transient acceleration of the universe. In both
cases, we obtain values for the cosmological parameters that satisfy current
observational bounds as well as the nucleosynthesis constraint on the
quintessence energy density.

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The categories of this paper are: cs
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph