Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Scalar field theory for warm dark matter   The warm dark matter (WDM) can be described by simple and useful model called
reduced relativistic gas (RRG). In this work, it is analytically constructed
the scalar field actions minimally and non-minimally coupled to gravity, which
are equivalent to RRG in the sense they produce the same cosmological solutions
for the conformal factor of the metric. In particular, we construct the scalar
theory which corresponds to the model of ultra-relativistic ideal gas of
spinless particles possessing conformal symmetry. Finally, the possibility of
supplementing our scalar field model with a dynamical dark energy in the form
of a running cosmological constant (RCC) is also considered.

27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci