Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hadron-quark mixed phase in neutron stars   Possibility of structured mixed phase at first order phase transitions is
examined by taking into account of charge screening and surface effects.
Hadron-quark phase transition in dense neutron star interiors is considered as
a concrete example.

2
The categories of this paper are: math
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph