Minimal Operator Norms via Minimal Theta Functions
Functional Analysis
2018-06-12 v2 Classical Analysis and ODEs
Abstract
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 result by Montgomery on minimal theta functions.
Cite
@article{arxiv.1608.01168,
title = {Minimal Operator Norms via Minimal Theta Functions},
author = {Markus Faulhuber},
journal= {arXiv preprint arXiv:1608.01168},
year = {2018}
}
Comments
14 pages