Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Remarks on strange-quark simulations with Wilson fermions   In the simulation of QCD with 2+1 flavors of Wilson fermions, the positivity
of the fermion determinant is generally assumed. We present evidence that this
assumption is in general not justified and discuss the consequences of this
finding.

5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
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The categories of this paper are: quant-ph
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom