Weyl-Heisenberg frames for subspaces of L^2(R)

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We give sufficient conditions for translates and modulates of a function g in L^2(R) to be a frame for its closed linear span. Even in the case where this family spans all of L^2(R), wou conditions are significantly weaker than the previous known conditions.
13 pages

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Functional Analysis, 42C15; 46C05; 46B20

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http://salesiana.dossiersoluciones.com/handle/123456789/77758

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/9811146
 http://arxiv.org/abs/math/9811146

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arXiv