Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multi-Space Structure of the Universe   If our universe has appeared in a result of Big Bang or something like this,
whether we have reasons to deny an existence of other universes appearing by
the same or similar way? An objection that there is no anything like it, is
doubtful, because nobody knows: what could we observe in this case? A model of
a multi-space universe with mutual coupling of spaces is being proposed and
investigated.

23
The categories of this paper are: solv-int
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc