Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On-shell and off-shell improvement for Ginsparg-Wilson fermions   We discuss the improvement of bilinear fermionic operators for
Ginsparg-Wilson fermions. We present explicit formulae for improved Green's
functions, which apply both on-shell and off-shell.

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The categories of this paper are: acc-phys
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The categories of this paper are: adap-org
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The categories of this paper are: q-fin
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The categories of this paper are: plasm-ph
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The categories of this paper are: funct-an
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The categories of this paper are: dg-ga
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The categories of this paper are: cs
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The categories of this paper are: eess
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-th
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The categories of this paper are: econ
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The categories of this paper are: math
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The categories of this paper are: atom-ph
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The categories of this paper are: solv-int
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The categories of this paper are: alg-geom
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The categories of this paper are: ao-sci