Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The density theorem for discrete series representations restricted to
  lattices   This article considers the relation between the spanning properties of
lattice orbits of discrete series representations and the associated lattice
co-volume. The focus is on the density theorem, which provides a trichotomy
characterizing the existence of cyclic vectors and separating vectors, and
frames and Riesz sequences. We provide an elementary exposition of the density
theorem, that is based solely on basic tools from harmonic analysis,
representation theory, and frame theory, and put the results into context by
means of examples.

17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga