Results 61 to 70 of about 37,564 (233)

Nonlinear porous medium flow with fractional potential pressure

open access: yes, 2010
We study a porous medium equation, with nonlocal diffusion effects given by an inverse fractional Laplacian operator. We pose the problem in n-dimensional space for all t>0 with bounded and compactly supported initial data, and prove existence of a weak ...
A. Córdoba   +25 more
core   +1 more source

Boundary fluxes for nonlocal diffusion

open access: yesJournal of Differential Equations, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Cortazar, Carmen   +3 more
openaire   +5 more sources

A Unifying Approach to Self‐Organizing Systems Interacting via Conservation Laws

open access: yesAdvanced Intelligent Discovery, EarlyView.
The article develops a unified way to model and analyze self‐organizing systems whose interactions are constrained by conservation laws. It represents physical/biological/engineered networks as graphs and builds projection operators (from incidence/cycle structure) that enforce those constraints and decompose network variables into constrained versus ...
F. Barrows   +7 more
wiley   +1 more source

Pattern formation in a mixed local and nonlocal reaction-diffusion system

open access: yesElectronic Journal of Differential Equations, 2012
Local and nonlocal reaction-diffusion models have been shown to demonstrate nontrivial steady state patterns known as Turing patterns. That is, solutions which are initially nearly homogeneous form non-homogeneous patterns.
Evelyn Sander, Richard Tatum
doaj  

Magnon transport and thermoelectric effects in ultrathin Tm_{3}Fe_{5}O_{12}/Pt nonlocal devices

open access: yesPhysical Review Research, 2022
The possibility of electrically exciting and detecting magnon currents in magnetic insulators has opened exciting perspectives for transporting spin information in electronic devices.
Jialiang Gao   +5 more
doaj   +1 more source

Material‐Based Intelligence: Autonomous Adaptation and Embodied Computation in Physical Substrates

open access: yesAdvanced Intelligent Systems, EarlyView.
This perspective formulates a unifying framework for Material‐Based Intelligence (MBI), defining the physical requirements for materials to achieve embodied action, active memory and embodied information processing through intrinsic nonequilibrium dynamics. The design of intelligent materials often draws parallels with the complex adaptive behaviors of
Vladimir A. Baulin   +4 more
wiley   +1 more source

Existence and properties of traveling waves for doubly nonlocal Fisher-KPP equations

open access: yesElectronic Journal of Differential Equations, 2019
We consider a reaction-diffusion equation with nonlocal anisotropic diffusion and a linear combination of local and nonlocal monostable-type reactions in a space of bounded functions on R^d. Using the properties of the corresponding semiflow, we prove
Dmitri Finkelshtein   +2 more
doaj  

Photo Thermal Diffusion of Excited Nonlocal Semiconductor Circular Plate Medium with Variable Thermal Conductivity

open access: yesAdvances in Condensed Matter Physics, 2023
To examine the effects of the nonlocal thermoelastic parameters in a nanoscale semiconductor material, a novel nonlocal model with variable thermal conductivity is provided in this study.
Shreen El-Sapa   +3 more
doaj   +1 more source

1/2-Laplacian problems with exponential nonlinearity

open access: yes, 2013
By exploiting a suitable Trudinger-Moser inequality for fractional Sobolev spaces, we obtain existence and multiplicity of solutions for a class of one-dimensional nonlocal equations with fractional diffusion and nonlinearity at exponential growth ...
Iannizzotto, Antonio, Squassina, Marco
core   +1 more source

Diffusion with nonlocal boundary conditions

open access: yesJournal of Functional Analysis, 2016
We consider second order differential operators $A_ $ on a bounded, Dirichlet regular set $ \subset \mathbb{R}^d$, subject to the nonlocal boundary conditions \[ u(z) = \int_ u(x)\, (z, dx)\quad \mbox{for } z \in \partial . \] Here the function $ : \partial \to \mathscr{M}^+( )$ is $ (\mathscr{M} ( ), C_b( ))$-continuous with $0\leq (z,
Arendt, Wolfgang   +2 more
openaire   +3 more sources

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