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Pure multiplicative stochastic resonance of anti-tumor model with seasonal modulability

Wei-Rong Zhong, Yuan-Zhi Shao, Zhen-Hui He

q-bio.OTarXiv:q-bio/0601016

Abstract

The effects of pure multiplicative noise on stochastic resonance in an anti-tumor system modulated by a seasonal external field are investigated by using theoretical analyses of the generalized potential and numerical simulations. For optimally selected values of the multiplicative noise intensity quasi-symmetry of two potential minima and stochastic resonance are observed. Theoretical results and numerical simulations are in good quantitative agreement.

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