Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On Weyl-Heisenberg Frames   In this paper we have generalized and studied the $K$-Weyl-Heisenberg frames,
where $K$ is a bounded linear operator on $L^2(\mathbb{R}^d)$. We have obtained
necessary and sufficient conditions for acertain system to be a
$K$-Weyl-Heisenberg frame. We have also given the invariance property of these
$K$-Weyl-Heisenberg frames.

25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys