Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the covariances of outdegrees in random plane recursive trees   In 2005 Janson, extending earlier work of Mahmoud, Smythe, and Szyma\'nski,
established the joint asymptotic normality of the outdegrees of a random plane
recursive tree. In particular, he gave an explicit description of the limiting
covariance matrix. Our aim here is to provide substantially simplified
expression for the limiting covariance matrix.

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The categories of this paper are: cmp-lg
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The categories of this paper are: alg-geom
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The categories of this paper are: stat
11
The categories of this paper are: hep-lat
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The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
3
The categories of this paper are: physics
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The categories of this paper are: quant-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ex
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The categories of this paper are: chem-ph
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The categories of this paper are: nlin
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The categories of this paper are: acc-phys
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The categories of this paper are: solv-int