Oscillation of Linear Second Order Delay Dynamic Equations on Time Scales

  • Agwo, Hassan Ahmed (Department of Mathematics, Ain Shams University, Faculty of Education)
  • Received : 2006.07.07
  • Published : 2007.09.23

Abstract

In this paper, we establish some new oscillation criteria for a second-order delay dynamic equation $$u^{{\Delta}{\Delta}}(t)+p(t)u(\tau(t))=0$$ on a time scale $\mathbb{T}$. The results can be applied on differential equations when $\mathbb{T}=\mathbb{R}$, delay difference equations when $\mathbb{T}=\mathbb{N}$ and for delay $q$-difference equations when $\mathbb{T}=q^{\mathbb{N}}$ for q > 1.

Keywords

References

  1. R. P. Agarwal, M. Bohner and S. H. Saker, Oscillation of second order delay dynamic equations, Canadian Appl. Math. Quart., 13(1)(2005), 1-17.
  2. R. P. Agarwal, M. Bohner, D. O, Regan and A. Peterson, dynamic equations on time scales: a survey, J. Comp. Appl. Math., 141(2002), 1-26. https://doi.org/10.1016/S0377-0427(01)00432-0
  3. H.A. Agwo, On the oscillation of first order delay dynamic equations with variable coefficients, Rocky Mountain J. Math., (accepted)
  4. H.A. Agwo, On the oscillation of second order nonlinear neutral delay dynamic equations, Georgian Math. J., (accepted).
  5. H.A. Agwo, On the oscillation of second order delay dynamic equations with several delays and variable coefficients, International J. Appl. Math. & Stat., (accepted).
  6. H.A. Agwo, Nonoscillation criteria for first order dynamic equations on a time scale, to appear.
  7. M. Bohner, L. Erbe, A. Peterson, Oscillation for nonlinear second order dynamic equations on a time scale, J. Math. Anal. Appl., 301(2005), 491-507. https://doi.org/10.1016/j.jmaa.2004.07.038
  8. M. Bohner and A. Peterson, Dynamic Equations on Time Scales: An Introduction with Application, Birkhauser, Boston, MA, 2001.
  9. M. Bohner and A. Peterson, Advances in Dynamic Equations on Time Scales, Birkhauser, Boston, MA, 2003.
  10. L. Erbe and A. Peterson, Riccati equations on a measure chain, In G. S. Ladde, N. G. Medhin and M. Sambandham editors, Proceedings of Dynamic Systems and Applications, Dynamic Publisher, Atlanta, 3(2001), 193-199.
  11. I. Gyori, G. Ladas, Oscillation Theory of Delay Differential Equations with Applications, Clarendon Press, Oxford, 1991.
  12. S. Hilger, Analysis on measure chains-a unified approach to continuous and discrete calculus, Results Math., 18(1990), 18-56.
  13. E. Hille, Nonoscillation theorems, Trans. Amer. Math. Soc., 64(1948), 234-252. https://doi.org/10.1090/S0002-9947-1948-0027925-7
  14. C. Y. Huang, W. T. Li, Classification and existence of positive solutions to non-linear dynamic equations on time scales, Electronic J. Diff. Eqs., 17(2004), 1-8.
  15. R. Koplatadze, G. Kvinikadze and I. P. Stavroulakis, Oscillation of second order linear delay differential equations, Functional Diff. Eqs. J., 7(2000), 121-145.
  16. G. S. Ladde, V. Lakshmikantham and B. G. Zhang, Oscillation Theory of Differential Equations with Deviating Arguments, Marcel Dekker, NewYork, 1987.
  17. Y. Sahiner, Oscillation of second order differential equations on time scales, Nonlinear Anal., to appear.
  18. S. H. Saker, On oscillation of second-order delay dynamic equations on time scales, Australian J. Mathl. Anal. Appl., (accepted).
  19. J. J. Wei, Oscillation of second order delay differential equation, Ann. Differential Equations, 4(1988), 473-478.
  20. B. G. Zhang and X. Deng, Oscillation of delay differential equations on time scales, Mathl. Comput. Modlling, 36(2002), 1307-1318. https://doi.org/10.1016/S0895-7177(02)00278-9