Oscillation for second order nonlinear differential equations with damping
DYNAMIC SYSTEMS AND APPLICATIONS, cilt.17, sa.1, ss.139-147, 2008 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 17 Sayı: 1
- Basım Tarihi: 2008
- Dergi Adı: DYNAMIC SYSTEMS AND APPLICATIONS
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.139-147
- Gazi Üniversitesi Adresli: Evet
Özet
Some new oscillation criteria are given for second order nonlinear differential equations with damping of the form (gamma (t) x')' + p (t) x' + q (t) f (x) = 0. Our results are to develop oscillation criteria without any restriction on the signs of p (t) and q (t). These results generalize and extend some earlier results of Abdullah [1] and Zheng and Liu [12].