A necessary and sufficient condition for the existence of positive periodic solutions of a Nicholson's blowflies model

zbMath1178.34081MaRDI QIDQ1012415

Zhi-Yuan Jiang, Sui-Sun Cheng, Jing-wen Li

Publication date: 21 April 2009

Published in: Boletín de la Sociedad Matemática Mexicana. Third Series (Search for Journal in Brave)

zbMATH Keywords

coincidence degree

Mathematics Subject Classification ID

Population dynamics (general) (92D25) Periodic solutions to functional-differential equations (34K13) Qualitative investigation and simulation of models involving functional-differential equations (34K60)

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