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A Periodic Prey-Predator System

✍ Scribed by Z. Amine; R. Ortega

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
434 KB
Volume
185
Category
Article
ISSN
0022-247X

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πŸ“œ SIMILAR VOLUMES

Periodicity in a Delayed Ratio-Dependent
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✍ Meng Fan; Ke Wang πŸ“‚ Article πŸ“… 2001 πŸ› Elsevier Science 🌐 English βš– 96 KB

With the help of a continuation theorem based on Gaines and Mawhin's coincidence degree, easily verifiable criteria are established for the global existence of positive periodic solutions of a delayed ratio-dependent predator-prey system in a periodic environment.

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A set of easily verifiable sufficient conditions is derived for the global existence of periodic solutions with strictly positive components for a periodic predator-prey system with infinite delays by using the method of coincidence degree.

cover
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The Imperium is under attack by a relentless tide of orks. The Imperial Fists have been destroyed, leaving Terra itself vulnerable, and across the galaxy, worlds are beset by greenskin savages. After centuries of peace, the Imperium is thrown into panic as human worlds everywhere are menaced by o