Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lectures on Entropy. Part I   These lecture notes concern information-theoretic notions of entropy. They
are intended for, and have been successfully taught to, undergraduate students
interested inresearch careers. Besides basic notions of analysis related to
convergence that are typically taught in the first or second year of
undergraduate studies, no other background is needed to read the notes. The
notes might be also of interest to any mathematically inclined reader who
wishes to learn basic facts about notions of entropy in an elementary setting.

30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
18
The categories of this paper are: econ
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th