Oscillation criteria for second-order re
β
R.P. Agarwal; Shiow-Ling Shieh; Cheh-Chih Yeh
π
Article
π
1997
π
Elsevier Science
π
English
β 598 KB
some oscillation criteria for the second order retarded differential equation [r(t)Iu'(t)la-lu'(t)]' +P(t)lu(T(t))la-lu(T(t)) = 0 CEO) are given, where CT and /3 are positive constants, and P ## ,T,T E C([to,oo),IR) satisfy some suitable conditions. Our results generalize those of Erbe, Ohriska a