Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Connected sum of spherical CR manifolds with positive CR Yamabe constant   Suppose $M_{1}$ and $M_{2}$ are two closed (compact with no boundary)
spherical CR manifolds with positive CR Yamabe constant. In this note, we show
that the connected sum of $M_{1}$ and $M_{2}$ also admits a spherical CR
structure with positive CR Yamabe constant.

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The categories of this paper are: math-ph
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The categories of this paper are: solv-int
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The categories of this paper are: cond-mat
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: q-alg
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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: atom-ph
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The categories of this paper are: q-fin
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The categories of this paper are: alg-geom
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The categories of this paper are: acc-phys
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The categories of this paper are: plasm-ph
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The categories of this paper are: cmp-lg