Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Projective modules over the fuzzy four-sphere   We describe how to reduce the fuzzy four-sphere algebra to a set of four
independent raising and lowering oscillator operators. In terms of them we
derive the projector valued operators for the fuzzy four-sphere, which are the
global definition of k-instanton connections over this noncommutative base
manifold.

22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci