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Usually discussions on the question of interpretation in the Langevin equation with multiplicative white noise are limited to the Ito and Stratonovich prescriptions. In this work, a Langevin equation with multiplicative white noise and its…

统计力学 · 物理学 2012-07-24 Kwok Sau Fa

The famous It\^o-Stratonovich dilemma arises when one examines a dynamical system with a multiplicative white noise. In physics literature, this dilemma is often resolved in favour of the Stratonovich prescription because of its two…

统计力学 · 物理学 2015-06-19 Alexei Chechkin , Ilya Pavlyukevich

Score-based diffusion models generate samples from an unknown target distribution using a time-reversed diffusion process. While such models represent state-of-the-art approaches in industrial applications such as artificial image…

机器学习 · 计算机科学 2026-02-09 Adrian Baule

The generalised Langevin equation with a retarded friction and a double-well potential is solved. The random force is modelled by a multiplicative noise with long jumps. Probability density distributions converge with time to a distribution…

统计力学 · 物理学 2015-06-16 Tomasz Srokowski

The effect of stochasticity, in the form of Gaussian white noise, in a predator-prey model with two distinct time-scales is presented. A supercritical singular Hopf bifurcation yields a Type II excitability in the deterministic model. We…

动力系统 · 数学 2017-07-20 Susmita Sadhu

Multiplicative white-noise stochastic processes continuously attract the attention of a wide area of scientific research. The variety of prescriptions available to define it difficults the development of general tools for its…

统计力学 · 物理学 2012-12-11 Zochil González Arenas , Daniel G. Barci

The abrupt changes that are ubiquitous in physical and natural systems are often well characterized by shot noise with a state dependent recurrence frequency and jump amplitude. For such state dependent behavior, we derive the transition…

统计力学 · 物理学 2018-12-05 Mark S. Bartlett , Amilcare Porporato

Starting with a micropolar formulation, known to account for nonlocal microstructural effects at the continuum level, a generalized Langevin equation (GLE) for a particle, describing the predominant motion of a localized region through a…

软凝聚态物质 · 物理学 2015-09-30 Saikat Sarkar , Shubhankar Roy Chowdhury , Debasish Roy , Ram Mohan Vasu

Stochastic evolution equations with compensated Poisson noise are considered in the variational approach with monotone and coercive coefficients. Here the Poisson noise is assumed to be time-homogeneous with $\sigma$-finite intensity…

概率论 · 数学 2022-04-20 Sima Mehri , Erfan Salavati , Bijan Z. Zangeneh

This paper presents a general approach to linear stochastic processes driven by various random noises. Mathematically, such processes are described by linear stochastic differential equations of arbitrary order (the simplest non-trivial…

凝聚态物理 · 物理学 2009-10-28 Alon Drory

We consider the Langevin equation with multiplicative noise term which depends on time and space. The corresponding Fokker-Planck equation in Stratonovich approach is investigated. Its formal solution is obtained for an arbitrary…

软凝聚态物质 · 物理学 2013-05-29 Kwok Sau Fa

The intrinsic stochasticity of gene expression can lead to large variations in protein levels across a population of cells. To explain this variability, different sources of mRNA fluctuations ('Poisson' and 'Telegraph' processes) have been…

生物物理 · 物理学 2011-03-02 Vlad Elgart , Tao Jia , Rahul V. Kulkarni

We investigate an example of noise-induced stabilization in the plane that was also considered in (Gawedzki, Herzog, Wehr 2010) and (Birrell, Herzog, Wehr 2011). We show that despite the deterministic system not being globally stable, the…

概率论 · 数学 2012-10-02 Avanti Athreya , Tiffany Kolba , Jonathan C. Mattingly

In this paper we develop a white noise framework for the study of stochastic partial differential equations driven by a d-parameter (pure jump) Levy white noise. As an example we use this theory to solve the stochastic Poisson equation with…

概率论 · 数学 2016-09-07 Arne Lokka , Bernt Oksendal , Frank Proske

We study the asymptotic behavior of solutions to stochastic evolution equations with monotone drift and multiplicative Poisson noise in the variational setting, thus covering a large class of (fully) nonlinear partial differential equations…

偏微分方程分析 · 数学 2009-09-22 Carlo Marinelli , Giacomo Ziglio

Recent experiments have shown that stochastic effects exerted at the level of translation contribute a substantial portion of the variation in abundance of proteins expressed at moderate to high levels. This study analyzes translational…

亚细胞过程 · 定量生物学 2014-09-16 Sandip Datta , Brian Seed

We discuss intrinsic noise effects in stochastic multiplicative-noise partial differential equations, which are qualitatively independent of the noise interpretation (Ito vs. Stratonovich), in particular in the context of noise-induced…

统计力学 · 物理学 2009-11-10 O. Carrillo , M. Ibanes , J. Garcia-Ojalvo , J. Casademunt , J. M. Sancho

Exponentiated gradient descent (EGD), a biologically motivated optimisation algorithm that respects Dale's law, produces log-normally distributed synaptic weights at convergence, in alignment with experimental observations in neuroscience.…

机器学习 · 计算机科学 2026-05-26 Nishanth Shetty , Madhava Prasath , Chandra Sekhar Seelamantula

We study some linear and nonlinear shot noise models where the jumps are drawn from a compound Poisson process with jump sizes following an Erlang-$m$ distribution. We show that the associated Master equation can be written as a spatial…

数学物理 · 物理学 2016-06-03 Max-Olivier Hongler , Roger Filliger

In this paper, we are interested in conditional McKean-Vlasov jump diffusions, which are also termed as McKean-Vlasov stochastic differential equations with jump idiosyncratic noise and jump common noise. As far as conditional McKean-Vlasov…

概率论 · 数学 2025-09-03 Jianhai Bao , Yao Liu , Jian Wang
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