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Oscillation and Global Attractivity in a Periodic Delay Equation

Published online by Cambridge University Press:  20 November 2018

J. R. Graef
Affiliation:
Department of Mathematics and Statistics, Mississippi State University, Mississippi State, Mississippi 39762, U.S.A.
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Abstract

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Consider the delay differential equation

where α(t) and β(t) are positive, periodic, and continuous functions with period w > 0, and m is a nonnegative integer. We show that this equation has a positive periodic solution x*(t) with period w. We also establish a necessary and sufficient condition for every solution of the equation to oscillate about x*(t) and a sufficient condition for x*(t) to be a global attractor of all solutions of the equation.

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1996

References

1. Arino, O. and Kimmel, M., Stability analysis of models of cell production system, Math. Modelling 17(1986), 12691300.Google Scholar
2. Gopalsamy, K., M. R. S. Kulenovic and Ladas, G., Environmental periodicity and time delays in a “food-limited“population model, J. Math. Anal. Appl. 147(1990), 545555.Google Scholar
3. Gyôri, I. and Ladas, G., Oscillation Theory of Delay Differential Equations with Applications, Oxford Univ. Press, Oxford, 1991.Google Scholar
4. Kocic, V., Ladas, G. and Qian, C., Linearized oscillations in nonautonomous delay differential equations, Differential Integral Equations 6(1993), 671683.Google Scholar
5. Kulenovic, M. R. S. and Ladas, G., Linearized oscillations in population dynamics, Bull. Math. Biol. 49(1987), 615627.Google Scholar
6. Kulenovic, M. R. S., Ladas, G. and Sficas, Y. G., Global attractivity in population dynamics, Comput. Math. Appl. 18(1989), 925928.Google Scholar
7. Lalli, B. S. and Zhang, B. G., On a periodic delay population model, Quart. Appl. Math. LII(1994), 3542.Google Scholar
8. Nicholson, A. J., The balance of animal population, J. Animal Ecology 2(1933), 132—178.Google Scholar
9. Qian, C., Global attractivity in nonlinear delay differential equations, J. Math.Anal. Appl. 197(1996), 529-547.Google Scholar
10. M. Wazewska-Czyzewska and Lasota, A., Mathematical problems of the dynamics of red blood cells system, Ann. Polish Math. Soc, Series III, Appl. Math. 17(1988), 2340.Google Scholar
11. Zhang, B. G. and Gopalsamy, K., Global attractivity and oscillations in aperiodic delay logistic equation, J. Math. Anal. Appl. 150(1990), 270283.Google Scholar