Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the arithmetical rank of the edge ideals of forests   We show that for the edge ideals of a certain class of forests, the
arithmetical rank equals the projective dimension.

36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ
3
The categories of this paper are: physics
16
The categories of this paper are: stat
19
The categories of this paper are: eess