Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Smooth quotients of bi-elliptic surfaces   We consider the quotient X of bi-elliptic surface by a finite automorphism
group. If X is smooth, then it is a bi-elliptic surface or ruled surface with
irregularity one. As a corollary any bi-elliptic surface cannot be Galois
covering of projective plane, hence does not have any Galois embedding.

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The categories of this paper are: alg-geom
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The categories of this paper are: atom-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: q-fin
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The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
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The categories of this paper are: comp-gas
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The categories of this paper are: acc-phys
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The categories of this paper are: cond-mat
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The categories of this paper are: hep-lat
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-bio
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The categories of this paper are: chem-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: bayes-an
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The categories of this paper are: supr-con