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Minimal Frame Operator Norms Via Minimal Theta Functions
We investigate sharp frame bounds of Gabor frames with chirped Gaussians and rectangular lattices or, equivalently, the case of the standard Gaussian and general lattices. We prove that for even redundancy and standard Gaussian window the hexagonal lattice minimizes the upper frame bound using a res...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Springer US
2017
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5935039/ https://www.ncbi.nlm.nih.gov/pubmed/29755253 http://dx.doi.org/10.1007/s00041-017-9526-x |