Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Some cubic birth and death processes and their related orthogonal
  polynomials   The orthogonal polynomials with recurrence relation \[(\la\_n+\mu\_n-z)
F\_n(z)=\mu\_{n+1} F\_{n+1}(z)+\la\_{n-1} F\_{n-1}(z)\] with two kinds of cubic
transition rates $\la\_n$ and $\mu\_n,$ corresponding to indeterminate
Stieltjes moment problems, are analyzed. We derive generating functions for
these two classes of polynomials, which enable us to compute their Nevanlinna
matrices. We discuss the asymptotics of the Nevanlinna matrices in the complex
plane.

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The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin