Non-real zeros of linear differential polynomials
نویسندگان
چکیده
منابع مشابه
Non-real zeros of linear differential polynomials
Let f be a real entire function with finitely many non-real zeros, not of the form f = Ph with P a polynomial and h in the Laguerre-Pólya class. Lower bounds are given for the number of non-real zeros of f ′′ + ωf , where ω is a positive real constant.
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ژورنال
عنوان ژورنال: Journal d'Analyse Mathématique
سال: 2009
ISSN: 0021-7670,1565-8538
DOI: 10.1007/s11854-009-0005-4