Sharp oscillation theorem for fourth-order linear delay differential equations
نویسندگان
چکیده
Abstract In this paper, we present a single-condition sharp criterion for the oscillation of fourth-order linear delay differential equation $$ x^{(4)}(t) + p(t)x\bigl(\tau (t)\bigr) = 0 x ( 4 ) t + p τ = 0 by employing novel method iteratively improved monotonicity properties nonoscillatory solutions. The result obtained improves large number existing ones in literature.
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ژورنال
عنوان ژورنال: Journal of Inequalities and Applications
سال: 2022
ISSN: ['1025-5834', '1029-242X']
DOI: https://doi.org/10.1186/s13660-022-02859-0