Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Exact Solution of Born-Infeld Theory in Two Dimension   We obtain the exact operator solution of two-dimensional quantum Born-Infeld
theory. This theory has a Lagrangian density non-polynomial in the fundamental
fields. So this analysis might shed some light on the analysis of
non-perturbative effects of field theories. We find the new exact soluble class
of quantum field theories.

17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
2
The categories of this paper are: math
29
The categories of this paper are: funct-an