The qualitative analysis of a difference equation of population growth

The qualitative analysis of a difference equation of population growth
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人口增长差分方程的定性分析

DOI:
10.1007/bf00307853
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发表时间:
1976
影响因子:
1.9
通讯作者:
R. F. Williams
R. F. Williams
中科院分区:
数学4区
文献类型:
--
作者:
S. Smale;R. F. Williams

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研究了由fb(x)=B x(1−x)定义的差分方程fb:[0,1]−[0,1].特别地,对于参数值B=3.83获得完整的定性信息。例如,(fb)i的不动点数量由下式给出 $$N_i = 1 + \left({\frac{{1-\sqrt 5 }}{2}} \right)^i + \left({\frac{{1 - \sqrt 5 }}{2}} \right)^i$$
SummaryThe difference equation fb:[0,1]−[0,1] defined by fb(x)=b x(1−x) is studied. In particular complete qualitative information is obtained for the parameter value b=3.83. For example the number of fixed points of (fb)i is given by $$N_i = 1 + \left( {\frac{{1 + \sqrt 5 }}{2}} \right)^i + \left( {\frac{{1 - \sqrt 5 }}{2}} \right)^i$$