Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Orthogonal polynomials on the real line corresponding to a perturbed
  chain sequence   In recent years, chain sequences and their perturbations have played a
significant role in characterising the orthogonal polynomials both on the real
line as well as on the unit circle. In this note, a particular disturbance of
the chain sequence related to orthogonal polynomials having their true interval
of orthogonality as a subset of $[0,\infty)$ is studied leading to an important
consequence related to the kernel polynomials. Such perturbations are shown to
be related to transformations of symmetric measures. An illustration using the
generalized Laguerre polynomials is also provided.

30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ