Heisenberg uncertainty inequality for Gabor transform (Q2830091)
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scientific article; zbMATH DE number 6649793
| Language | Label | Description | Also known as |
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| English | Heisenberg uncertainty inequality for Gabor transform |
scientific article; zbMATH DE number 6649793 |
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Heisenberg uncertainty inequality for Gabor transform (English)
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9 November 2016
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Heisenberg uncertainty inequality
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Fourier transform
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Gabor transform
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Heisenberg group
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nilpotent Lie group
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Plancherel formula
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The classical Heisenberg uncertainty inequality states that a non-zero function and its Fourier transform cannot both be sharply localized. There is a respective inequality if the Fourier transform is replaced by the Gabor transform -- also known as the windowed Fourier transform. The authors prove a Heisenberg-type inequality for the Fourier transform on non-commutative groups of the form \(K\ltimes \mathbb R^n\), where \(K\) is a compact subgroup of the group of automorphisms of \(\mathbb R^n\). This implies further the inequality for the Gabor transform (defined in [\textit{A. G. Farashahi} and \textit{R. Kamyabi-Gol}, Bull. Belg. Math. Soc. - Simon Stevin 19, No. 4, 683--701 (2012; Zbl 1268.43002)]) for several classes of groups of the form \(K\ltimes \mathbb R^n\).
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