Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dirac operators on noncommutative manifolds with boundary   We study an example of an index problem for a Dirac-like operator subject to
Atiyah-Patodi-Singer boundary conditions on a noncommutative manifold with
boundary, namely the quantum unit disk.

5
The categories of this paper are: gr-qc
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The categories of this paper are: nucl-th
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The categories of this paper are: acc-phys
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The categories of this paper are: nlin
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The categories of this paper are: q-fin
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-th
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The categories of this paper are: atom-ph
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The categories of this paper are: eess
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
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The categories of this paper are: adap-org
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The categories of this paper are: hep-ex
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-ex
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The categories of this paper are: stat