Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Solutions to the ultradiscrete KP hierarchy and its reductions   We propose a recursive representation of solutions to an ultradiscrete
analogue of the discrete KP hierarchy, which is the master equation of discrete
soliton equations. We also propose a class of solutions which can be used to
start the recursion. Finally, as an application, we discuss the compatibility
condition of ultradiscrete soliton equations.

29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th