Results 21 to 30 of about 538,081 (247)

On a Multistable Type of Free Boundary Problem with a Flux at the Boundary

open access: yesAdvances in Mathematical Physics, 2023
This paper studies the free boundary problem of a multistable equation with a Robin boundary condition, which may be used to describe the spreading of the invasive species with the solution representing the density of species and the free boundary ...
Haitao Ren, Jingjing Cai, Li Xu
doaj   +1 more source

Identify hidden spreaders of pandemic over contact tracing networks

open access: yesScientific Reports, 2023
The COVID-19 infection cases have surged globally, causing devastations to both the society and economy. A key factor contributing to the sustained spreading is the presence of a large number of asymptomatic or hidden spreaders, who mix among the ...
Shuhong Huang   +5 more
doaj   +1 more source

Voltage-induced spreading and superspreading of liquids [PDF]

open access: yes, 2013
The ability to quickly spread a liquid across a surface and form a film is fundamental for a diverse range of technological processes, including printing, painting and spraying.
Sampara, Naresh   +5 more
core   +1 more source

On a reaction–diffusion–advection system: fixed boundary or free boundary

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2018
This paper is devoted to the asymptotic behaviors of the solution to a reaction–diffusion–advection system in a homogeneous environment with fixed boundary or free boundary.
Ying Xu, Dandan Zhu, Jingli Ren
doaj   +1 more source

The spreading speed of an SIR epidemic model with nonlocal dispersal

open access: yes, 2021
In this paper, we study an SIR epidemic model with nonlocal dispersal. We study the case with vital dynamics so that a renewal of the susceptible individuals is taken into account.
Jong-Shenq Guo; Amy Ai Ling Poh; Masahiko Shimijo
core   +1 more source

Spreading Speed in A Nonmonotone Equation with Dispersal and Delay

open access: yesMathematics, 2019
This paper is concerned with the estimation of spreading speed of a nonmonotone equation, which involves time delay and nonlocal dispersal. Due to the time delay, this equation does not generate monotone semiflows when the positive initial value is given.
Xi-Lan Liu, Shuxia Pan
doaj   +1 more source

Asymptotic states for kink–meson scattering

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
The definition of a quantum state corresponding to a wave packet far from a global soliton is considered. We define an asymptotic quantum state corresponding to a localized wave packet of elementary quanta far from a kink.
Jarah Evslin
doaj   +1 more source

Numerical simulation of spreading drops [PDF]

open access: yes, 2013
We consider a liquid drop that spreads on a wettable surface. Different time evolutions have been observed for the base radius r depending of the relative role played by inertia, viscosity, surface tension and the wetting condition. Numerical simulations
Maglio, Marco, Legendre, Dominique
core   +1 more source

Asymptotic behavior of solutions of a Fisher equation with free boundaries and nonlocal term

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2019
We study the asymptotic behavior of solutions of a Fisher equation with free boundaries and the nonlocal term (an integral convolution in space). This problem can model the spreading of a biological or chemical species, where free boundaries represent ...
Jingjing Cai   +3 more
doaj   +1 more source

Logarithmic, fractal and volume-law entanglement in a Kitaev chain with long-range hopping and pairing

open access: yesJournal of High Energy Physics, 2023
Thanks to their prominent collective character, long-range interactions promote information spreading and generate forms of entanglement scaling, which cannot be observed in traditional systems with local interactions.
Andrea Solfanelli   +3 more
doaj   +1 more source

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