Results 1 to 10 of about 1,879,580 (356)
Multiplicative noise and the diffusion of conserved densities [PDF]
Journal of High Energy Physics, 2021 Stochastic fluid dynamics governs the long time tails of hydrodynamic correlation functions, and the critical slowing down of relaxation phenomena in the vicinity of a critical point in the phase diagram.
Jingyi Chao, Thomas Schäfer
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Study of optical stochastic solitons of Biswas-Arshed equation with multiplicative noise
AIMS Mathematics, 2023 In many nonlinear partial differential equations, noise or random fluctuation is an inherent part of the system being modeled and have vast applications in different areas of engineering and sciences.
Hamood Ur Rehman +3 more
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Mesoscopic description of the annealed Ising model, and multiplicative noise [PDF]
, 1998 A new type of Langevin equation exhibiting a non trivial phase transition associated with the presence of multiplicative noise is introduced. The equation is derived as a mesoscopic representation of the microscopic annealed Ising model (AIM) proposed by
Walter Genovese +2 more
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Fluctuation Dissipation Relation for a Langevin Model with Multiplicative Noise [PDF]
, 2001 A random multiplicative process with additive noise is described by a Langevin equation. We show that the fluctuation-dissipation relation is satisfied in the Langevin model, if the noise strength is not so strong.Comment: 11 pages, 6 figures, other ...
Hidetsugu Sakaguchi
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Hidden Periodicity and Chaos in the Sequence of Prime Numbers
Advances in Mathematical Physics, 2011 Logarithmic gaps have been used in order to find a periodic component of the sequence of prime numbers, hidden by a random noise (stochastic or chaotic).
A. Bershadskii
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Concentration of Contractive Stochastic Approximation: Additive and Multiplicative Noise [PDF]
arXiv.org, 2023 In this paper, we establish maximal concentration bounds for the iterates generated by a stochastic approximation (SA) algorithm under a contractive operator with respect to some arbitrary norm (for example, the $\ell_\infty$-norm).
Zaiwei Chen +2 more
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Robust Kalman Filters With Unknown Covariance of Multiplicative Noise [PDF]
IEEE Transactions on Automatic Control, 2021 In this article, the joint estimation of state and noise covariance for linear systems with unknown covariance of multiplicative noise is considered.
Xingkai Yu, Ziyang Meng
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Media Statistika, 2021 The regression model that can be used to model spatial data is Spatial Autoregressive (SAR) model. The level of accuracy of the estimated parameters of the SAR model can be improved, especially to provide better results and can reduce the error rate by ...
Dewi Retno Sari Saputro +2 more
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Learning Optimal Controllers for Linear Systems With Multiplicative Noise via Policy Gradient
IEEE Transactions on Automatic Control, 2021 The linear quadratic regulator (LQR) problem has reemerged as an important theoretical benchmark for reinforcement learning-based control of complex dynamical systems with continuous state and action spaces.
Benjamin J. Gravell +2 more
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IET Control Theory & Applications, 2021 This paper studies the stochastic stability of opinion formation systems under both non‐time delay and time delay. Individuals whose opinions are affected by multiplicative noise are considered.
Zhao Zhou +4 more
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