Results 11 to 20 of about 11,396 (164)

LANGEVIN EQUATION ON FRACTAL CURVES [PDF]

open access: yesFractals, 2016
We analyze random motion of a particle on a fractal curve, using Langevin approach. This involves defining a new velocity in terms of mass of the fractal curve, as defined in recent work. The geometry of the fractal curve, plays an important role in this analysis.
Satin, Seema, Gangal, A. D.
openaire   +3 more sources

From the Underdamped Generalized Elastic Model to the Single Particle Langevin Description

open access: yesMathematics, 2017
The generalized elastic model encompasses several linear stochastic models describing the dynamics of polymers, membranes, rough surfaces, and fluctuating interfaces.
Alessandro Taloni
doaj   +1 more source

Fractional Langevin Equation Involving Two Fractional Orders: Existence and Uniqueness Revisited

open access: yesMathematics, 2020
We consider the nonlinear fractional Langevin equation involving two fractional orders with initial conditions. Using some basic properties of Prabhakar integral operator, we find an equivalent Volterra integral equation with two parameter Mittag–Leffler
Hossein Fazli   +2 more
doaj   +1 more source

Quasirelativistic Langevin equation [PDF]

open access: yesPhysical Review E, 2013
We address the problem of a microscopic derivation of the Langevin equation for a weakly relativistic Brownian particle. A non-covariant Hamiltonian model is adopted, in which the free motion of particles is described relativistically, while their interaction is treated classically, i.e.
openaire   +3 more sources

The generalized Schrödinger–Langevin equation [PDF]

open access: yesAnnals of Physics, 2014
In this work, we derive a generalization of the so-called Schr dinger-Langevin or Kostin equation for a Brownian particle interacting with a heat bath. This generalization is based on a nonlinear interaction model providing a state-dependent dissipation process exhibiting multiplicative noise.
Bargueño, Pedro, Miret-Artés, Salvador
openaire   +2 more sources

Solvability of Nonlinear Langevin Equation Involving Two Fractional Orders with Dirichlet Boundary Conditions

open access: yesInternational Journal of Differential Equations, 2010
We study a Dirichlet boundary value problem for Langevin equation involving two fractional orders. Langevin equation has been widely used to describe the evolution of physical phenomena in fluctuating environments.
Bashir Ahmad, Juan J. Nieto
doaj   +1 more source

Generalized Langevin equation with fluctuating diffusivity

open access: yesPhysical Review Research, 2022
A generalized Langevin equation with fluctuating diffusivity (GLEFD) is proposed, and it is shown that the GLEFD satisfies a generalized fluctuation-dissipation relation.
Tomoshige Miyaguchi
doaj   +1 more source

Analytical and Numerical Treatments of Conservative Diffusions and the Burgers Equation

open access: yesEntropy, 2018
The present work is concerned with the study of a generalized Langevin equation and its link to the physical theories of statistical mechanics and scale relativity.
Dimiter Prodanov
doaj   +1 more source

On the new fractional configurations of integro-differential Langevin boundary value problems

open access: yesAlexandria Engineering Journal, 2021
In this paper, we present the existence criteria for the solutions of boundary value problems involving generalized fractional integro-Langevin equation and inclusion supplemented with nonlocal fractional boundary conditions. The main idea of the current
Shahram Rezapour   +2 more
doaj   +1 more source

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