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On Erb’s uncertainty principle

Volume 232 / 2016

Hubert Klaja Studia Mathematica 232 (2016), 7-17 MSC: Primary 47A12, 42C02; Secondary 47B38, 42A52. DOI: 10.4064/sm8241-3-2016 Published online: 18 April 2016


We improve a result of Erb, concerning an uncertainty principle for orthogonal polynomials. The proof uses numerical range and a decomposition of some multiplication operators as a difference of orthogonal projections.


  • Hubert KlajaDépartement de Mathématiques et de Statistique
    Pavillon Alexandre-Vachon
    1045, av. de la Médecine
    Université Laval
    Québec, Canada G1V 0A6

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