Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the degeneration, regeneration and braid monodromy of $T \times T$   This paper is the first in a series of three papers concerning the surface T
times T. In this paper we study the degeneration of T times T and the
regeneration of its degenerated object. We study the braid monodromy and its
regeneration.

35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph