Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lines on Fermat surfaces   We prove that the Neron-Severi groups of several complex Fermat surfaces are
generated by lines. Specifically, we obtain these new results for all degrees
up to 100 that are relatively prime to 6. The proof uses reduction modulo a
supersingular prime. The techniques are developed in detail. They can be
applied to other surfaces and varieties as well.

4
The categories of this paper are: cond-mat
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph