Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Rectifiability and Minkowski bounds for the zero loci of $\mathbb{Z}/2$
  harmonic spinors in dimension 4   This article proves that the zero locus of a $\mathbb{Z}/2$ harmonic spinor
on a 4 dimensional manifold is 2-rectifiable and has locally finite Minkowski
content.

12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga