Oscillation of forced neutral differential equations with positive and negative coefficients

被引:4
作者
Ocalan, Ozkan [1 ]
机构
[1] Afyon Kocatepe Univ, Fac Sci & Arts, Dept Math, TR-03200 Afyon, Turkey
关键词
differential equation; forced; neutral; oscillation; positive and negative coefficients;
D O I
10.1016/j.camwa.2007.03.010
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Some sufficient conditions are obtained for the oscillation of forced neutral differential equations with positive and negative coefficients [x(t)-R(t)x(t-r)]'+P(t)x(t-tau)-Q(t)x(t-sigma)=f(t), t >= t(0) where R(t), P(t), Q(t) is an element of C ([t(0), infinity), R+), r > 0, tau >= 0, sigma >= 0. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1411 / 1421
页数:11
相关论文
共 13 条
[1]  
Chanturia T. A., 1980, DIFF URAVN, V16, P470
[2]  
CHUANXI Q, 1990, CANAD MATH B, V33, P442
[3]  
Erbe L.H., 1995, Oscillation Theory for Functional Differential Equations
[4]  
Farrell K., 1988, APPL ANAL, V27, P181
[5]  
GYORI I, 1991, OSCILLATION THEORY F
[6]  
Luo ZG, 2000, DYN CONTIN DISCRET I, V7, P489
[7]   Oscillation and nonoscillation of neutral differential equations with positive and negative coefficients [J].
Luo, ZG ;
Shen, JH .
CZECHOSLOVAK MATHEMATICAL JOURNAL, 2004, 54 (01) :79-93
[8]   Oscillation of neutral differential equation with positive and negative coefficients [J].
Ocalan, Ozkan .
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2007, 331 (01) :644-654
[9]   OSCILLATIONS FOR 1ST ORDER NEUTRAL DIFFERENTIAL-EQUATIONS WITH VARIABLE-COEFFICIENTS [J].
RUAN, S .
BULLETIN OF THE AUSTRALIAN MATHEMATICAL SOCIETY, 1991, 43 (01) :147-152
[10]   Oscillations of solutions of neutral differential equations with positive and negative coefficients [J].
Shen, JH ;
Debnath, L .
APPLIED MATHEMATICS LETTERS, 2001, 14 (06) :775-781