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Characteristics of delay systems periodic in two dimensions

✍ Scribed by A. G. Shein; V. I. Molyavko; G. Ya. Krasovskii


Book ID
112462919
Publisher
Springer US
Year
1970
Tongue
English
Weight
135 KB
Volume
13
Category
Article
ISSN
0033-8443

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By using the continuation theorem of coincidence degree theory, sufficient and realistic conditions are obtained for the existence of positive periodic solutions for both periodic Lotka᎐Volterra equations and systems with distributed or statedependent delays. Our results substantially extend and imp