Uncertainty principles with error term in Gelfand-Shilov spaces
arXiv:2201.09781 · doi:10.1007/s00013-022-01763-9
Abstract
In this note, an alternative approach to establish observability for semigroups based on their smoothing properties is presented. The results discussed here are closely related to those recently obtained in [arXiv:2112.01788], but the current proof allows to get rid of several technical assumptions by following the standard complex analytic approach established by Kovrijkine combined with an idea from [arXiv:2201.02370].
10 pages; improved constant by using different asymptotics
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