Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Radio detection in the multi-messenger context   The present work discusses the development of the radio technique for
detection of ultra-high energy air-showers induced by cosmic radiation, and the
prospects of its application in the future multi-messenger activities,
particularly for detection of ultra-high energy cosmic rays, gamma rays and
neutrinos. It gives an overview of the results achieved by the modern digital
radio arrays, as well as discuss present challenges and future prospects.}

11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con