Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multivariable Bessel polynomials related to the hyperbolic Sutherland
  model with external Morse potential   A multivariable generalisation of the Bessel polynomials is introduced and
studied. In particular, we deduce their series expansion in Jack polynomials, a
limit transition from multivariable Jacobi polynomials, a sequence of
algebraically independent eigenoperators, Pieri type recurrence relations, and
certain orthogonality properties. We also show that these multivariable Bessel
polynomials provide a (finite) set of eigenfunctions of the hyperbolic
Sutherland model with external Morse potential.

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The categories of this paper are: supr-con
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The categories of this paper are: hep-ex
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The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
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The categories of this paper are: q-bio
3
The categories of this paper are: physics
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The categories of this paper are: solv-int
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The categories of this paper are: q-fin
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The categories of this paper are: adap-org
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The categories of this paper are: cs
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The categories of this paper are: bayes-an
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The categories of this paper are: nucl-th
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The categories of this paper are: ao-sci
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The categories of this paper are: plasm-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: chao-dyn