Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The contour gauge in use: telling untold   In Quantum Field Theory, we discuss the main features of the (non-local)
contour gauge which extends the local axial-type gauge used in most approaches.
Based on the gluon geometry, we demonstrate that the contour gauge does not
suffer from the residual gauge. We discuss the useful correspondence between
the contour gauge conception and the Hamiltonian (Lagrangian) formalism. Having
compared the local and non-local gauges, we again advocate the advantage of the
contour gauge use.

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The categories of this paper are: comp-gas
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
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The categories of this paper are: adap-org
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The categories of this paper are: plasm-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
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The categories of this paper are: q-fin
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The categories of this paper are: eess
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The categories of this paper are: mtrl-th
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The categories of this paper are: solv-int
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The categories of this paper are: alg-geom