Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Even Dimensional Manifolds and Generalized Anomaly Cancellation Formulas   We give a direct proof of a cancellation formula raised in [7] on the level
of differential forms. We also obtain more cancellation formulas for even
dimensional Riemannian manifolds with a complex line bundle involved. Relations
among these cancellation formulas are discussed.

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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: hep-ex
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The categories of this paper are: mtrl-th
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The categories of this paper are: eess
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The categories of this paper are: q-fin
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The categories of this paper are: gr-qc
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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: nlin
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The categories of this paper are: bayes-an
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The categories of this paper are: funct-an
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The categories of this paper are: stat
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The categories of this paper are: q-bio
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The categories of this paper are: hep-lat
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The categories of this paper are: ao-sci