Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Star-covering properties: generalized $\Psi$-spaces, countability
  conditions, reflection   We investigate star-covering properties of $\Psi$-like spaces. We show
star-Lindel\"ofness is reflected by open perfect mappings. In addition, we
offer a new equivalence of CH.

10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph