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Mathematical Analysis of a Single-Species Population Model in a Polluted Environment with Discrete Time Delays
Joint Authors
Sharma, Swarnali
Samanta, G. P.
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-18, 18 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-06-16
Country of Publication
Egypt
No. of Pages
18
Main Subjects
Abstract EN
We have discussed the dynamical behaviour of a single-species population model in a polluted environment which describes the effect of toxicants on ecological system.
Boundedness, positivity, and stability analysis of the model at various equilibrium points is discussed thoroughly.
We have also studied the effect of single discrete delay as well as double discrete delays on the population model.
Existence conditions of the Hopf bifurcation for single time delay are investigated.
The length of delay preserving the stability is also estimated.
The direction and the stability criteria of the bifurcating periodic solutions are determined by using the normal form theory and the center manifold theorem.
The stability of the model with double time delays is investigated by using the Nyquist criteria.
By choosing one of the delays as a bifurcation parameter, the model is found to undergo a Hopf bifurcation.
Some numerical simulations for justifying the theoretical results are also illustrated by using MATLAB, which shows the reliability of our model from the practical point of view.
American Psychological Association (APA)
Sharma, Swarnali& Samanta, G. P.. 2013. Mathematical Analysis of a Single-Species Population Model in a Polluted Environment with Discrete Time Delays. Journal of Mathematics،Vol. 2013, no. 2013, pp.1-18.
https://search.emarefa.net/detail/BIM-481939
Modern Language Association (MLA)
Sharma, Swarnali& Samanta, G. P.. Mathematical Analysis of a Single-Species Population Model in a Polluted Environment with Discrete Time Delays. Journal of Mathematics No. 2013 (2013), pp.1-18.
https://search.emarefa.net/detail/BIM-481939
American Medical Association (AMA)
Sharma, Swarnali& Samanta, G. P.. Mathematical Analysis of a Single-Species Population Model in a Polluted Environment with Discrete Time Delays. Journal of Mathematics. 2013. Vol. 2013, no. 2013, pp.1-18.
https://search.emarefa.net/detail/BIM-481939
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-481939