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Positive Periodic Solution for a Neutral Delay Model in Population

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In this paper, by using of some new technics and theory of topological degree, the existence of positive periodic solution for the neutral delay model in population of the formN′(t) = N(t)[α(t)- b(t)N(t - τ)- cN′(t - τ)]is studied. A new result is obtained , and results related to references are improved.

Neutral typedelay model in populationpositive periodic solutiontopological degree

Li Qiong、Cao Jinde、Wan Shidong

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Department of Mathematics, Kunming Junior Normal College, Kunming 650031, P. R China

Adult Education College, Yunnan University, Kunming 650091, P. R. China

1998

生物数学学报
中国数学会生物数学学会

生物数学学报

CSCD
ISSN：1001-9626
年,卷(期)：1998.13(4)
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