Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-embeddability of certain classes of Levi flat manifolds   On the basis of a result of Barrett, we show that members of certain classes
of abstract Levi flat manifolds with boundary, whose Levi foliation contains a
compact leaf with contracting, flat holonomy, admit no $CR$ embedding as a
hypersurface of a complex manifold.

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The categories of this paper are: plasm-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: chem-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: patt-sol
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The categories of this paper are: dg-ga
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The categories of this paper are: cond-mat
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-fin
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-th
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-th
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The categories of this paper are: gr-qc
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The categories of this paper are: cs
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The categories of this paper are: eess