Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mirror Symmetry Constructions   These expository notes are based on lectures by Yongbin Ruan during a special
semester on the B-model at the University of Michigan in Winter 2014. They
outline and compare the mirror symmetry constructions of Batyrev-Borisov,
Hori-Vafa, and Berglund-Hubsch-Krawitz.

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The categories of this paper are: supr-con
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The categories of this paper are: ao-sci
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The categories of this paper are: q-alg
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The categories of this paper are: econ
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-ex
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The categories of this paper are: alg-geom
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The categories of this paper are: comp-gas
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The categories of this paper are: adap-org
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The categories of this paper are: quant-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: nucl-ex
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The categories of this paper are: nucl-th
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The categories of this paper are: q-fin
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The categories of this paper are: atom-ph
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The categories of this paper are: eess