Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Discrete Inverse Scattering Transform for Q3$_\delta$   We derive a fully discrete Inverse Scattering Transform as a method for
solving the initial-value problem for the Q3$_\delta$ lattice
(difference-difference) equation for real-valued solutions. The initial
condition is given on an infinite staircase within an N-dimensional lattice and
must obey a given summability condition. The forward scattering problem is
one-dimensional and the solution to Q3$_\delta$ is expressed through the
solution of a singular integral equation. The solutions obtained depend on N
discrete independent variables and N parameters.

34
The categories of this paper are: chem-ph
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The categories of this paper are: eess
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
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The categories of this paper are: solv-int
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The categories of this paper are: adap-org
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The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
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The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ