Density results for Gabor systems associated with periodic subsets of the real line
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چکیده
منابع مشابه
Density results for Gabor systems associated with periodic subsets of the real line
The well-known density theorem for one-dimensional Gabor systems of the form (e2Jl'imbx g(x-na)}m,nEZ, where g E L2(JR), states that a necessary and sufficient condition for the existence of such a systemwhQse linear span is dense in L2(R), or which forms a frame for L2(R), is that the density condition a b :s I is satisfied. The main goal of this paper is to study the analogous problem for Gab...
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ژورنال
عنوان ژورنال: Journal of Approximation Theory
سال: 2009
ISSN: 0021-9045
DOI: 10.1016/j.jat.2008.08.007