Frequency of stochastic oscillations in interacting population models

被引：3

作者：

Morita, S ^{[1
]}

Itoh, Y ^{[1
]}

Tainaka, K ^{[1
]}

机构：

[1] Shizuoka Univ, Dept Syst Engn, Hamamatsu, Shizuoka 4328561, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2005年 / 74卷 / 03期

关键词：

stochastic oscillation; quasi-cycle; prey predator system; interacting population; deterministic skeleton; coherent resonance;

D O I：

10.1143/JPSJ.74.819

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Interacting population models often exhibit sustained stochastic oscillations, while the corresponding deterministic models present damped oscillations toward stable equilibrium. We study stochastic oscillation using the Langevin equation. We calculate several indicators that correspond to frequency. We find that their values are different.

引用

页码：819 / 822

页数：4

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