Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quintessence Model and Cosmic Microwave Background   A particular kind of quintessence is considered, with equation of motion
$p_Q/\rho_Q = -1$, corresponding to a cosmological term with time-dependence
$\Lambda(t) = \Lambda(t_0) (R(t_0)/R(t))^{P}$ and we examine how values of
$\Omega_m$ and $\Omega_{\Lambda}$ depend on $P$.

4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
23
The categories of this paper are: solv-int