Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Bosonic Structure of a 2-Dimensional Fermion Model with Interaction
  among Different Species II -- N-species Case --   We study a massive Thirring-like model in 2-dimensional space-time, which
contains fermions with arbitrary number (N) of different species. This model is
an extension of that of a previous paper, where we have considered two-species
case. By this extension we expect that we can expose more general structures of
this kind of model. We obtain the equivalent boson model with N species to our
fermion model. We find that the coupling constant must be set in some regions
in order for the model to be physically sensible. It seems hard to find such
regions from direct obsavation of the original fermion model. We also find that
for specific values of the coupling constant some of the boson fields disappear
from the system. Therefore, the N-species fermion model is described by the
boson model with fewer species.

5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
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The categories of this paper are: astro-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-fin
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph