Perturbations causing oscillations of functional-differential equations
نویسندگان
چکیده
منابع مشابه
Oscillations Of Functional Differential Equations
Consider the rst order delay diierential equation x 0 (t) + p(t)x(t ?) = 0; > 0; t t 0 ; () and its discrete analogue Oscillation criteria are established for () in the case where 0 < liminf t!1 R t t? p (s) 1 e and limsup t!1 R t t? p(s)ds < 1, and for () 0 when liminf n!1 n?1 P i=n?k p i k k+1 k+1 and limsup n!1 n P i=n?k p i < 1. reziume. naSromSi ganxil u l ia pir vel i rigis dagvianebu l a...
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ژورنال
عنوان ژورنال: Proceedings of the American Mathematical Society
سال: 1974
ISSN: 0002-9939
DOI: 10.1090/s0002-9939-1974-0328270-3