Simplified and improved criteria for oscillation of delay differential equations of fourth order

Advances in Difference Equations

article

Moaaz, O.¹  Muhib, A.¹  Baleanu, D.³  Alharbi, W.⁴  Mahmoud, E. E.⁵ 

[1] Department of Mathematics, Faculty of Science, Mansoura University;Department of Mathematics, Faculty of Education – Al-Nadirah, Ibb University;Department of Mathematics and Computer Science, Faculty of Arts and Sciences, Çankaya University Ankara;Physics Department, Faculty of Science, University of Jeddah;Department of Mathematics and Statistics, College of Science, Taif University

关键词: Delay argument;    Noncanonical operator;    Fourth-order;    Oscillation;    Differential equations;   

DOI  :  10.1186/s13662-021-03449-y

学科分类：航空航天科学

来源: SpringerOpen

【 摘 要 】

An interesting point in studying the oscillatory behavior of solutions of delay differential equations is the abbreviation of the conditions that ensure the oscillation of all solutions, especially when studying the noncanonical case. Therefore, this study aims to reduce the oscillation conditions of the fourth-order delay differential equations with a noncanonical operator. Moreover, the approach used gives more accurate results when applied to some special cases, as we explained in the examples.

【 授权许可】

CC BY