Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Frobenius direct image of the structure sheaf of a homogeneous
  projective variety   We present an example of a homogeneous projective variety the Frobenius
direct image of the structure sheaf of which has nonvanishing self extension.

8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph