Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: D-Branes and Vanishing Cycles in Higher Dimensions   We investigate the quantum volume of D-branes wrapped around cycles of
various dimension in Calabi-Yau fourfolds and fivefolds. Examining the cases of
the sextic and heptic hypersurface Calabi-Yau varieties, as well as one example
in weighted projective space, we find expressions for periods which vanish at
the singular point analogous to the conifold point. As in the known
three-dimensional cases, it is the top dimensional cycle which attains zero
quantum volume, even though lower dimensional cycles remain non-degenerate,
indicating this phenomena to be a general feature of quantum geometry.

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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: q-alg
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The categories of this paper are: hep-ph
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The categories of this paper are: math-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: cmp-lg
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The categories of this paper are: acc-phys
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The categories of this paper are: chem-ph
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The categories of this paper are: adap-org
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The categories of this paper are: q-fin
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The categories of this paper are: patt-sol
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The categories of this paper are: bayes-an
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The categories of this paper are: cond-mat
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The categories of this paper are: math