Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A further look at time-and-band limiting for matrix orthogonal
  polynomials   We extend to a situation involving matrix valued orthogonal polynomials a
scalar result that originates in work of Claude Shannon and a ground-breaking
series of papers by D. Slepian, H. Landau and H. Pollak at Bell Labs in the
1960's. While these papers feature integral and differential operators acting
on scalar valued functions, we are dealing here with integral and differential
operators acting on matrix valued functions.

5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph