Gianni Pagnini

Noise effect on swarming in self-propelled particle systems with long-range alignment

Andrea Fiorese, Scott Hottovy, Nicola M. Pugno, Gianni Pagnini

it, us, gb, es (code pays fourni par la source)

Sub-diffusion by random walks in quenched random environments

H. A. Araújo, Yann Lanoiselée, Gianni Pagnini

We study random walks in quenched random environments and, by deploying the Fock space approach, we derive a heuristic statistical argument to state the condition for the emerging of sub-diffusion. In particular, let r ∈ [ 0 , 1 ] be the …

es (code pays fourni par la source)

The diffusion equation for non-Markovian Gaussian stochastic processes

Alessandro Taloni, Gianni Pagnini, Aleksei Chechkin

We derive the exact evolution equation for the probability density function of particle displacements generated by arbitrary Gaussian velocity processes, when neither Markovianity and nor stationarity are assumed. Starting from the characteristic function of the density of the position, we construct a …

The diffusion equation for non-Markovian Gaussian stochastic processes

Alessandro Taloni, Gianni Pagnini, Aleksei Chechkin

We derive the exact evolution equation for the probability density function of particle displacements generated by arbitrary Gaussian velocity processes, when neither Markovianity and nor stationarity are assumed. Starting from the characteristic function of the density of the position, we construct a …

it, es, ua (code pays fourni par la source)

Limit theorems for the dynamical foundation of the fractional Brownian motion and related models of anomalous diffusion with random diffusion coefficient and time-dependent random Hurst parameter

Christian Bender, Yana A. Butko, Mirko D’Ovidio, Gianni Pagnini

Anomalous diffusion is an established phenomenon but still a theoretical challenge in non-equilibrium statistical mechanics. Physical models are built incrementally, and the most recent and most general family is based on the fractional Brownian motion (fBm) with a random diffusion coefficient (superstatistical …

Limit theorems for the dynamical foundation of the fractional Brownian motion and related models of anomalous diffusion with random diffusion coefficient and time-dependent random Hurst parameter

Christian Bender, Yana A. Butko, Mirko D’Ovidio, Gianni Pagnini

Anomalous diffusion is an established phenomenon but still a theoretical challenge in non-equilibrium statistical mechanics. Physical models are built incrementally, and the most recent and most general family is based on the fractional Brownian motion (fBm) with a random diffusion coefficient (superstatistical …

de, it, es (code pays fourni par la source)

A unifying approach to diffusive transport in annealed heterogeneous media

Yann Lanoiselée, Denis S. Grebenkov, Gianni Pagnini

We introduce the concept of Randomly Modulated Gaussian Processes as a unifying framework for elaborating, analyzing and classifying anomalous diffusion models in annealed heterogeneous media. This formulation incorporates correlations in the displacements together with correlated fluctuations of their amplitudes. Most known models …

A unifying approach to diffusive transport in annealed heterogeneous media

Yann Lanoiselée, Denis S. Grebenkov, Gianni Pagnini

We introduce the concept of Randomly Modulated Gaussian Processes as a unifying framework for elaborating, analyzing and classifying anomalous diffusion models in annealed heterogeneous media. This formulation incorporates correlations in the displacements together with correlated fluctuations of their amplitudes. Most known models …

es, fr (code pays fourni par la source)

Sub-diffusion by random walks in random environments

H. A. Araújo, Yann Lanoiselée, Gianni Pagnini

es (code pays fourni par la source)

Noise Effect on Swarming in Self-Propelled Particle Systems with Long-Range Alignment

Andrea Fiorese, Scott Hottovy, Nicola M. Pugno, Gianni Pagnini

it, us, es (code pays fourni par la source)

Noise Effect on Swarming in Self-Propelled Particle Systems with Long-Range Alignment

Andrea Fiorese, Scott Hottovy, Nicola M. Pugno, Gianni Pagnini

Limit theorems for the dynamical foundation of the fractional Brownian motion and related models of anomalous diffusion with random diffusion coefficient and time-dependent random Hurst parameter

Christian Bender, Yana A. Butko, Mirko D’Ovidio, Gianni Pagnini