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81
Asymptotic Behavior of the Stochastic Rayleigh-van der Pol Equations with Jumps
Published 2013-01-01“…Interestingly, this shows the effect of the Poisson noise which can stabilize or unstabilize the system which is significantly different from the classical Brownian motion process.…”
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82
On a Perturbed Risk Model with Time-Dependent Claim Sizes
Published 2024-01-01“…We consider a risk model perturbed by a Brownian motion, where the individual claim sizes are dependent on the inter-claim times. …”
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83
Least Squares Estimation for α-Fractional Bridge with Discrete Observations
Published 2014-01-01“…We consider a fractional bridge defined as dXt=-α(Xt/(T-t))dt+dBtH, 0≤t<T, where BH is a fractional Brownian motion of Hurst parameter H>1/2 and parameter α>0 is unknown. …”
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84
Convergence of numerical solution of stochastic differential equation for the self-thinning process
Published 2002-12-01“… For theoretical and practical analysis of the self-thinning process we use stochastic differential equation, which take the form: dN (t) = N (t) (α - β ln N (t))dt + μN (t)dW (t), N(t0) = N0, t0 ≤ t ≤ T, where N – tree per hectare (stem/ha), t – stand age, W(t) – scalar standard Brownian motion, N0 – not random, α, β and μ are parameters – real constants. …”
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85
Drift and the Risk-Free Rate
Published 2011-01-01“…It is proven, under a set of assumptions differing from the usual ones in the unboundedness of the time interval, that, in an economy in equilibrium consisting of a risk-free cash account and an equity whose price process is a geometric Brownian motion on [0,∞), the drift rate must be close to the risk-free rate; if the drift rate 𝜇 and the risk-free rate 𝑟 are constants, then 𝑟=𝜇 and the price process is the same under both empirical and risk neutral measures. …”
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86
Rough Paths above Weierstrass Functions
Published 2024-11-01“…The fundamental observation of rough paths theory is that if one can define “iterated integrals” above a signal, then one can construct solutions to differential equations driven by the signal.The typical examples of the signals of interest are stochastic processes such as (fractional) Brownian motion. However, rough paths theory is not inherently random and therefore can treat irregular deterministic driving signals such as a (vector-valued) Weierstrass function. …”
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87
About brownian movement in liquids
Published 2020-12-01“…In metallic liquids, Brownian motion refers to microscopic non-metallic particles and intermetallides that have densities comparable to melt densities. …”
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88
Holderian functional central limit theorem for linear processes
Published 2004-12-01“…The weak convergence of polygonal line process build from sums of (Xt)t ≥ 1 to the standard Brownian motion W in the Hölder space (Hα), 0 < α < 1/2 - 1/τ holds provided the proper noise behavior is satisfied: E|ε1|τ < ∞, τ > 2. …”
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89
Student Models for a Risky Asset with Dependence: Option Pricing and Greeks
Published 2025-01-01“… We propose several new models in finance known as the Fractal Activity Time Geometric Brownian Motion (FATGBM) models with Student marginals. …”
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90
Polar Functions for Anisotropic Gaussian Random Fields
Published 2014-01-01“…The class of Gaussian random fields that satisfy our conditions includes not only fractional Brownian motion and the Brownian sheet, but also such anisotropic fields as fractional Brownian sheets, solutions to stochastic heat equation driven by space-time white noise, and the operator-scaling Gaussian random field with stationary increments.…”
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91
Quasilinear Hyperbolic Systems Applied to Describe the Magnetohydrodynamic Nanofluid Flow
Published 2023-01-01“…The results suggest that Brownian motion has a negligible impact on the heat transfer rate. …”
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92
On multiple-particle continuous-time random walks
Published 2004-01-01“…Scaling limits of continuous-time random walks are used in physics to model anomalous diffusion in which particles spread at a different rate than the classical Brownian motion. In this paper, we characterize the scaling limit of the average of multiple particles, independently moving as a continuous-time random walk. …”
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93
Convergence Rate of Numerical Solutions for Nonlinear Stochastic Pantograph Equations with Markovian Switching and Jumps
Published 2013-01-01“…It is proved that Euler-Maruyama scheme for nonlinear stochastic pantograph equations with Markovian switching and Brownian motion is of convergence with strong order 1/2. …”
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94
Solution theory of fractional SDEs in complete subcritical regimes
Published 2025-01-01“…We consider stochastic differential equations (SDEs) driven by a fractional Brownian motion with a drift coefficient that is allowed to be arbitrarily close to criticality in a scaling sense. …”
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95
Characterization Theorems for Generalized Functionals of Discrete-Time Normal Martingale
Published 2015-01-01“…Our results show that generalized functionals of discrete-time normal martingales can be characterized only by growth condition, which contrasts sharply with the case of some continuous-time processes (e.g., Brownian motion), where both growth condition and analyticity condition are needed to characterize generalized functionals of those continuous-time processes.…”
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96
Reaction-diffusion for fish populations with realistic mobility
Published 2024-12-01“…However, constant diffusivity in a population density corresponds to standard Brownian motion of individuals, with a normal distribution for displacement over a fixed time interval. …”
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97
Insider Trading with Memory under Random Deadline
Published 2021-01-01“…By a filtering theory on fractional Brownian motion and the stochastic maximum principle, we obtain a necessary condition of the insider’s optimal strategy, an equation satisfied. …”
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98
Asymptotically Sufficient Statistics in Nonparametric Regression Experiments with Correlated Noise
Published 2009-01-01“…We show that the NPR experiment with correlated noise is asymptotically equivalent to an experiment that observes the mean function in the presence of a continuous Gaussian process that is similar to a fractional Brownian motion. These results provide a theoretical motivation for some commonly proposed wavelet estimation techniques.…”
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99
The Dynamic Spread of the Forward CDS with General Random Loss
Published 2014-01-01“…We assume that the filtration F is generated by a d-dimensional Brownian motion W=(W1,…,Wd)′ as well as an integer-valued random measure μ(du,dy). …”
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100
Liquid Phase Separation Mechanism of Cu-40 wt.% Pb Hypermonotectic Alloys
Published 2018-01-01“…The liquid phase separation mechanism in the systems with stable miscibility gaps mainly involved Ostwald ripening, Brownian motion, Marangoni migration, and Stokes motion. …”
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