Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: BRS Cohomology of Zero Curvature Systems I. The Complete Ladder Case   We present here the zero curvature formulation for a wide class of field
theory models. This formalism, which relies on the existence of an operator
$\d$ which decomposes the exterior space-time derivative as a BRS commutator,
turns out to be particularly useful in order to solve the Wess-Zumino
consistency condition. The examples of the topological theories and of the
$B$-$C$ string ghost system are considered in detail.

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The categories of this paper are: solv-int
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-ex
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The categories of this paper are: patt-sol
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-ex
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The categories of this paper are: gr-qc
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The categories of this paper are: acc-phys
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The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
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The categories of this paper are: supr-con
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The categories of this paper are: ao-sci
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The categories of this paper are: atom-ph
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The categories of this paper are: mtrl-th