Results 41 to 50 of about 36,953 (196)

An epidemic model with nonlocal diffusion on networks

open access: yesNetworks and Heterogeneous Media, 2016
We consider a SIS system with nonlocal diffusion which is the continuous version of a discrete model for the propagation of epidemics on a metapopulation network.Under the assumption of limited transmission, we prove the global existence of a unique ...
Elisabeth Logak, Isabelle Passat
doaj   +1 more source

Uniqueness and properties of distributional solutions of nonlocal equations of porous medium type [PDF]

open access: yes, 2016
We study the uniqueness, existence, and properties of bounded distributional solutions of the initial value problem problem for the anomalous diffusion equation $\partial_tu-\mathcal{L}^\mu [\varphi (u)]=0$.
del Teso, Félix   +2 more
core   +3 more sources

Numerical modeling of population 2D-dynamics with nonlocal interaction [PDF]

open access: yesКомпьютерные исследования и моделирование, 2010
Numerical solutions for the two-dimensional reaction-diffusion equation with nonlocal nonlinearity are obtained. The solutions reveal formation of dissipative structures.
Aleksei Vladimirovich Borisov   +2 more
doaj   +1 more source

Spatiotemporal Dynamics of a Diffusive Immunosuppressive Infection Model with Nonlocal Competition and Crowley–Martin Functional Response

open access: yesAxioms, 2023
In this paper, we introduce the Crowley–Martin functional response and nonlocal competition into a reaction–diffusion immunosuppressive infection model.
Yuan Xue, Jinli Xu, Yuting Ding
doaj   +1 more source

Continuous dependence estimates for nonlinear fractional convection-diffusion equations

open access: yes, 2012
We develop a general framework for finding error estimates for convection-diffusion equations with nonlocal, nonlinear, and possibly degenerate diffusion terms.
Biler P.   +5 more
core   +5 more sources

Distributed optimal control of a nonstandard nonlocal phase field system [PDF]

open access: yes, 2016
We investigate a distributed optimal control problem for a nonlocal phase field model of viscous Cahn-Hilliard type. The model constitutes a nonlocal version of a model for two-species phase segregation on an atomic lattice under the presence of ...
Colli, Pierluigi   +2 more
core   +4 more sources

Turing instability and bifurcation in a predator-prey model with nonlocal fear and nonlinear cross-diffusion

open access: yesElectronic Research Archive
This paper has studied a predator-prey model that incorporates a nonlocal fear effect and nonlinear cross-diffusion under homogeneous Neumann boundary conditions.
Meiling Zhao, Sen Wang, Biao Liu
doaj   +1 more source

Quasi-periodic solutions for the incompressible Navier-Stokes equations with nonlocal diffusion

open access: yesElectronic Research Archive, 2023
This paper studied the incompressible Navier-Stokes (NS) equations with nonlocal diffusion on $ \mathbb{T}^d (d \ge 2) $. Driven by a time quasi-periodic force, the existence of time quasi-periodic solutions in the Sobolev space was established.
Shuguan Ji , Yanshuo Li
doaj   +1 more source

Long-time dynamics of an epidemic model with nonlocal diffusion and free boundaries

open access: yesElectronic Research Archive, 2022
In this paper, we consider a reaction-diffusion epidemic model with nonlocal diffusion and free boundaries, which generalises the free-boundary epidemic model by Zhao et al. [1] by including spatial mobility of the infective host population.
Ting-Ying Chang, Yihong Du
doaj   +1 more source

Study of the dynamic formation of transmission gratings recorded in photopolymers and holographic polymer-dispersed liquid crystals [PDF]

open access: yes, 2004
Local and nonlocal models for the diffusion of photopolymers are applied to the dynamic formation of transmission gratings recorded in photopolymers and holographic polymer-dispersed liquid crystals (H-PDLCs). We retrieve the main parameters of H-PDLCs (
Bowley   +11 more
core   +2 more sources

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