Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Zero Curvature Formulation of TB, sTB Hierarchy and Topological
  Algebras   A particular dispersive generalization of long water wave equation in $1+1$
dimensions, which is important in the study of matrix models without scaling
limit, known as two--Boson (TB) equation, as well as the associated hierarchy
has been derived from the zero curvature condition on the gauge group
$SL(2,R)\otimes U(1)$. The supersymmetric extension of the two--Boson (sTB)
hierarchy has similarly been derived from the zero curvature condition
associated with the gauge supergroup $OSp(2|2)$. Topological algebras arise
naturally as the second Hamiltonian structure of these classical integrable
systems, indicating a close relationship of these models with 2d topological
field theories.

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The categories of this paper are: eess
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The categories of this paper are: cs
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The categories of this paper are: atom-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: dg-ga
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The categories of this paper are: math-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: q-alg
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The categories of this paper are: quant-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: q-bio
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The categories of this paper are: gr-qc
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The categories of this paper are: math
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The categories of this paper are: hep-ph
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The categories of this paper are: stat
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The categories of this paper are: nlin