Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Signature transition and compactification   It is shown that a change in the signature of the space-time metric together
with compactification of internal dimensions could occure in a six-dimensional
cosmological model. We also show that this is due to interaction with Maxwell
fields having support in the internal part of the space-time.

33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
3
The categories of this paper are: physics
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
2
The categories of this paper are: math