Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On K3 fibered Calabi-Yau 3-folds   Given X a K3 surface, a mirror dual to X can be identified with a component
of the moduli space of semistable sheaves on X. We consider fibrations by K3
surfaces over a one dimensional base that are Calabi-Yau and we obtain a dual
fibration that turns to be derived equivalent to the original one and we relate
the problem to mirror symmetry.

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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: atom-ph
4
The categories of this paper are: cond-mat
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The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
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The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
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The categories of this paper are: cmp-lg
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The categories of this paper are: funct-an
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The categories of this paper are: ao-sci
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The categories of this paper are: acc-phys
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The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
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The categories of this paper are: hep-ex