Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Zeta functions of quadratic Artin-Schreier curves in characteristic two   The aim of this paper is twofold: on one hand we study the invariants of
traces of quadratic forms over a finite field of characteristic two. On the
other hand, we give results about the zeta functions of certain curves studied
by van der Geer and ven der Vlugt.

21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat