Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A short proof of monotonicity formula for curve shortening flow in 3D   We give a rather elementary proof of a Huisken-type monotonicity formula for
curve shortening flow in 3D.

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
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
18
The categories of this paper are: econ