Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Rank four vector bundles without theta divisor over a curve of genus two   We show that the locus of stable rank four vector bundles without theta
divisor over a smooth projective curve of genus two is in canonical bijection
with the set of theta-characteristics. We give several descriptions of these
bundles and compute the degree of the rational theta map.

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The categories of this paper are: astro-ph
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The categories of this paper are: physics
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The categories of this paper are: stat
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The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
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The categories of this paper are: hep-ex
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The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
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The categories of this paper are: quant-ph
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The categories of this paper are: econ
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The categories of this paper are: plasm-ph
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The categories of this paper are: q-bio