Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An improved energy argument for the Hegselmann-Krause model   We show that the freezing time of the $d$-dimensional Hegselmann-Krause model
is $O(n^4)$ where $n$ is the number of agents. This improves the best known
upper bound whenever $d\geq 2$.

21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg