منابع مشابه
Effects of Multiplicative Colored Noise on Bacteria Growth
We use the logistic growth model to describe the bacterium growth in the presence of a Gaussian colored noise. The effects of multiplicative colored noise on the steady state probability distribution of the bacterium growth were investigated. Our results show that increasing the strength of the multiplicative colored noise may lead to decreasing bacterium number and even bacterium extinction. O...
متن کاملContaining Colored Multiplicative Noise
Necessary and sufficient conditiom are derived nnder which agiven set of hear hcb'onalsassume unique values over the solution sedof a hear equation; the latter property is referred to as partial uniqueness.The wefnlness of the conditions obtained for partial uniqueness is dem-onstrated by applying them to various problems of observab~tyand inputidentirLsbilit...
متن کاملEffects of colored noise on stochastic resonance in a bistable system subject to multiplicative and additive noise.
The effects of colored noise on stochastic resonance (SR) in a bistable system driven by multiplicative colored noise and additive white noise and a periodic signal are studied by using the unified colored noise approximation and the theory of signal-to-noise ratio (SNR) in the adiabatic limit. In the case of no correlations between noises, there is an optimal noise intensities ratio R at which...
متن کاملInverse stochastic resonance in electroconvection by multiplicative colored noise.
A kind of inverse stochastic resonance (ISR) observed in ac-driven electroconvection (EC) in a nematic liquid crystal is presented. In successive pattern evolutions by increasing noise intensity V_{N}, a typical EC (with a normalized amplitude A_{0}=1 at V_{N}=0) disappears (A_{0}→0), and then the rest state (A_{0}=0) reenters into the EC (A_{0}=1); eventually, it develops into complicated EC(A...
متن کاملStochastic Heat Equation with Multiplicative Fractional-Colored Noise
We consider the stochastic heat equation with multiplicative noise ut = 1 2 ∆u + uẆ in R+ × R , whose solution is interpreted in the mild sense. The noise Ẇ is fractional in time (with Hurst index H ≥ 1/2), and colored in space (with spatial covariance kernel f). When H > 1/2, the equation generalizes the Itô-sense equation for H = 1/2. We prove that if f is the Riesz kernel of order α, or the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Brazilian Journal of Physics
سال: 2007
ISSN: 0103-9733
DOI: 10.1590/s0103-97332007000700009