Abstract
We consider the counter images \(\mathcal H_\flat (\mathbf R^{d})\) and \(\mathcal H_{0,\flat }(\mathbf R^{d})\) of entire functions with exponential and almost exponential bounds, respectively, under the Bargmann transform, and we characterize them by estimates of powers of the harmonic oscillator. We also consider the Pilipović spaces \(\varvec{\mathcal S}_{\! s}(\mathbf R^{d})\) and \(\varvec{\varSigma }_s(\mathbf R^{d})\) when \(0<s<1/2\) and deduce their images under the Bargmann transform.
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The research of C. Fernández and A. Galbis was partially supported by the projects MTM2013-43540-P, GVA Prometeo II/2013/013 and ACOMP/2015/186.
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Fernández, C., Galbis, A. & Toft, J. The Bargmann transform and powers of harmonic oscillator on Gelfand–Shilov subspaces. RACSAM 111, 1–13 (2017). https://doi.org/10.1007/s13398-015-0273-z
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DOI: https://doi.org/10.1007/s13398-015-0273-z