Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Comment on "Greybody radiation and quasinormal modes of Kerr-like black
  hole in Bumblebee gravity model"   It is shown that the paper "Greybody radiation and quasinormal modes of
Kerr-like black hole in Bumblebee gravity model", Eur. Phys. J. C 81, 501
(2021). arXiv:2102.06303, recently published in this journal is based on an
incorrect result obtained by Ding et al., Eur. Phys. J. C 80, 178 (2020).
arXiv:1910.02674, for a Kerr-like black hole solution.

8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat