Open AccessOscillations of First Order Neutral Differential Equations with Positive and Negative Coefficients
Author(s) -
Baghdad Science Journal
Publication year - 2014
Publication title -
mağallaẗ baġdād li-l-ʿulūm
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.167
H-Index - 6
eISSN - 2411-7986
pISSN - 2078-8665
DOI - 10.21123/bsj.11.4.1624-1628
Subject(s) - mathematics , oscillation (cell signaling) , order (exchange) , linear differential equation , mathematical analysis , differential equation , differential (mechanical device) , physics , thermodynamics , chemistry , economics , biochemistry , finance
Oscillation criterion is investigated for all solutions of the first-order linear neutral differential equations with positive and negative coefficients. Some sufficient conditions are established so that every solution of eq.(1.1) oscillate. Generalizing of some results in [4] and [5] are given. Examples are given to illustrated our main results.