Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A countable series of bisimple $\mathcal{H}$-trivial finitely presented
  congruence-free monoids   We provide a countable series of bisimple $\mathcal{H}$-trivial finitely
presented congruence-free monoids.

25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg