Results 61 to 70 of about 19,837,870 (284)
Population splitting, trapping, and non-ergodicity in heterogeneous diffusion processes. [PDF]
Physical Chemistry, Chemical Physics - PCCP, 2013 We consider diffusion processes with a spatially varying diffusivity giving rise to anomalous diffusion. Such heterogeneous diffusion processes are analysed for the cases of exponential, power-law, and logarithmic dependencies of the diffusion ...
Andrey G. Cherstvy, R. Metzler
semanticscholar +1 more source
Excursions of diffusion processes and continued fractions [PDF]
, 2010 It is well-known that the excursions of a one-dimensional diffusion process can be studied by considering a certain Riccati equation associated with the process.
Comtet, Alain, Tourigny, Yves
core +5 more sources
Two Multi-Sigmoidal Diffusion Models for the Study of the Evolution of the COVID-19 Pandemic
Mathematics, 2021 A proposal is made to employ stochastic models, based on diffusion processes, to represent the evolution of the SARS-CoV-2 virus pandemic. Specifically, two diffusion processes are proposed whose mean functions obey multi-sigmoidal Gompertz and Weibull ...
Antonio Barrera +3 more
doaj +1 more source
Strong Stationary Duality for Diffusion Processes
, 2015 We develop the theory of strong stationary duality for diffusion processes on compact intervals. We analytically derive the generator and boundary behavior of the dual process and recover a central tenet of the classical Markov chain theory in the ...
Fill, James Allen, Lyzinski, Vince
core +1 more source
Some optimal control problems for partial differential inclusions [PDF]
Opuscula Mathematica, 2008 Partial differential inclusions are considered. In particular, basing on diffusions properties of weak solutions to stochastic differential inclusions, some existence theorems and some properties of solutions to partial differential inclusions are given.
Michał Kisielewicz
doaj
Investigating Peer and Sorting Effects within an Adaptive Multiplex Network Model
Games, 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
Diffusion Cascades and Mutually Coupled Diffusion Processes
MathematicsIn this paper, we define and investigate a system of coupled regular diffusion equations in which each concentration acts as a driving term in the next diffusion equation.
Imre Ferenc Barna, László Mátyás
doaj +1 more source
Mixed Similarity Diffusion for Recommendation on Bipartite Networks
IEEE Access, 2017 In recommender systems, collaborative filtering technology is an important method to evaluate user preference through exploiting user feedback data, and has been widely used in industrial areas.
Ximeng Wang +5 more
doaj +1 more source
Anisotropic diffusion processes in early vision [PDF]
, 1989 Summary form only given. Images often contain information at a number of different scales of resolution, so that the definition and generation of a good scale space is a key step in early vision. A scale space in which object boundaries are respected and
Perona, P.
core