Results 21 to 30 of about 1,182,694 (285)

Diffusion-annihilation processes in complex networks [PDF]

open access: yes, 2004
We present a detailed analytical study of the $A+A\to\emptyset$ diffusion-annihilation process in complex networks. By means of microscopic arguments, we derive a set of rate equations for the density of $A$ particles in vertices of a given degree, valid
Michele Catanzaro   +14 more
core   +4 more sources

A Comparative Analysis of the Tribological Behavior of Hard Layers Obtained by Three Different Hardened-Surface Processes on the Surface of AISI 4140 Steel

open access: yesCrystals, 2022
This work compares the tribological behavior of surface layers obtained by three different hardening processes. The layers were formed on the surface of AISI 4140 steel by applying three different thermochemical treatments.
Pablo Alfredo Ruiz-Trabolsi   +6 more
doaj   +1 more source

Investigating Peer and Sorting Effects within an Adaptive Multiplex Network Model

open access: yesGames, 2019
Individuals have a strong tendency to coordinate with all their neighbors on social and economics networks. Coordination is often influenced by intrinsic preferences among the available options, which drive people to associate with similar peers, i.e ...
Francesca Lipari   +2 more
doaj   +1 more source

Slowly modulated oscillations in nonlinear diffusion processes [PDF]

open access: yes, 1977
It is shown here that certain systems of nonlinear (parabolic) reaction-diffusion equations have solutions which are approximated by oscillatory functions in the form R(ξ - cτ)P(t^*) where P(t^*) represents a sinusoidal oscillation on a fast time scale t*
Cohen, Donald S.   +2 more
core   +1 more source

Comparing algebraic and numerical solutions of classical diffusion process equations in computational financial mathematics

open access: yesDiscrete Dynamics in Nature and Society, 2001
We revise the interrelations between the classical Black Scholes equation, the diffusion equation and Burgers equation. Some of the algebraic properties the diffusion equation shows are elaborated and qualitatively presented.
Andreas Ruffing   +2 more
doaj   +1 more source

On the Importance of Electron Diffusion in a Bulk-Matter Test of the Pauli Exclusion Principle

open access: yesEntropy, 2018
The VIolation of Pauli (VIP) experiment (and its upgraded version, VIP-2) uses the Ramberg and Snow (RS) method (Phys. Lett. B 1990, 238, 438) to search for violations of the Pauli exclusion principle in the Gran Sasso underground laboratory.
Edoardo Milotti   +25 more
doaj   +1 more source

Inference for Convolutionally Observed Diffusion Processes

open access: yesEntropy, 2020
We propose a new statistical observation scheme of diffusion processes named convolutional observation, where it is possible to deal with smoother observation than ordinary diffusion processes by considering convolution of diffusion processes and some ...
Shogo H Nakakita, Masayuki Uchida
doaj   +1 more source

An optimal control problem without control costs

open access: yesMathematical Biosciences and Engineering, 2023
A two-dimensional diffusion process is controlled until it enters a given subset of $ \mathbb{R}^2 $. The aim is to find the control that minimizes the expected value of a cost function in which there are no control costs.
Mario Lefebvre
doaj   +1 more source

Driving Factors for Opinion Diffusion Behavior in Consumers on Online Social Networks: A Study of Network Characteristics

open access: yesIEEE Access, 2019
Online consumer social networks have become an important marketing channel for product-related information diffusion in the technological landscape. This paper aims to identify the factors that drive opinion diffusion behavior in consumers on online ...
Peng Shao, Heng Chen
doaj   +1 more source

Diffusion-Reorganized Aggregates: Attractors in Diffusion Processes?

open access: yes, 2000
A process based on particle evaporation, diffusion and redeposition is applied iteratively to a two-dimensional object of arbitrary shape. The evolution spontaneously transforms the object morphology, converging to branched structures.
B. Sapoval   +16 more
core   +1 more source

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