Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Regular and Periodic Tachyon Kinks   We search for regular tachyon kinks in an extended model, which includes the
tachyon action recently proposed to describe the tachyon field. The extended
model that we propose adds a new contribution to the tachyon action, and seems
to enrich the present scenario for the tachyon field. We have found stable
tachyon kinks of regular profile, which may appropriately lead to the singular
kink found by Sen sometime ago. Also, under specific conditions we may find
periodic array of kink-antikink configurations.

17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga
12
The categories of this paper are: nucl-th