Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The topological string associated with a simple singularity of type $D$   The partition function of $D_{N+1}$ topological string, the coupled system of
topological gravity and $D_{N+1}$ topological minimal matter , is proposed in
the framework of KP hierarchy. It is specified by the elements of $GL(\infty)$
which constitute the deformed family from the $A_{2N-1}$ topological string.
Its dispersionless limit is investigated from the view of both dispersionless
KP hierarchy and singularity theory. In particular the free energy restricted
on the small phase space coincides with that for the topological
Landau-Ginzburg model of type $D_{N+1}$.

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The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
19
The categories of this paper are: eess
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas