Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Holographic bound and spectrum of quantized black hole   Recent attempts to calculate the black-hole entropy in loop quantum gravity
are demonstrated to be erroneous. The correct solution of the problem is
pointed out.

1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th