arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0902.2946math.AP
收藏

年龄和空间结构人口模型的正平衡解

Positive Equilibrium Solutions for Age and Spatially Structured Population Models

Christoph Walker

摘要:

在抽象的背景下研究了一类具有非线性扩散的年龄依赖型人口方程正平衡解的存在性。通过引入一个衡量生育力强度的分叉参数,证明了(正)平衡点从平凡平衡点分叉。在某些情况下,分叉的方向进行了分析。

英文摘要:

The existence of positive equilibrium solutions to age-dependent population equations with nonlinear diffusion is studied in an abstract setting. By introducing a bifurcation parameter measuring the intensity of the fertility it is shown that a branch of (positive) equilibria bifurcates from the trivial equilibrium. In some cases the direction of bifurcation is analyzed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑