Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nearly-Linear Time Algorithms for Graph Partitioning, Graph
  Sparsification, and Solving Linear Systems   This paper has been divided into three papers. arXiv:0809.3232,
arXiv:0808.4134, arXiv:cs/0607105

20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph