Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Self-mapping degrees of torus bundles and torus semi-bundles   Each closed oriented 3-manifold $M$ is naturally associated with a set of
integers $D(M)$, the degrees of all self-maps on $M$. $D(M)$ is determined for
each torus bundle and torus semi-bundle $M$. The structure of torus semi-bundle
is studied in detail. The paper is a part of a project to determine $D(M)$ for
all 3-manifolds in Thurston's picture.

26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph