Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Density of Gabor Systems Via the Short Time Fourier Transform   We apply a new approach to the study of the density of Gabor systems, and
obtain a simple and straightforward proof of Ramanathan and Steger's well known
result regarding the density of Gabor frames and Gabor Riesz sequences.
Moreover, this point of view allows us to extend this result in several
directions. The approach we use was first observed by A. Olevskii and the third
author in their study of exponential systems, here we develop and simplify it
further.

35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
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The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
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The categories of this paper are: stat
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th