Results 51 to 60 of about 45,726 (269)

A Rumor-Spreading Model with Three Identical Time Delays

open access: yesMathematics
Understanding the effect of time delays on rumor spreading is of special importance to curbing the spread of rumors. This article proposes a rumor-spreading model with three identical time delays: a delay associated with the negative influence of a ...
Chunlong Fu   +4 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

Exact hydrodynamic solution of a double domain wall melting in the spin-1/2 XXZ model

open access: yesSciPost Physics, 2022
We investigate the non-equilibrium dynamics of a one-dimensional spin-1/2 XXZ model at zero-temperature in the regime $|\Delta|< 1$, initially prepared in a product state with two domain walls i.e, $|\downarrow\dots\downarrow\uparrow\dots\uparrow ...
Stefano Scopa , Pasquale Calabrese, Jérôme Dubail
doaj   +1 more source

Propagation of Delayed Lattice Differential Equations without Local Quasimonotonicity [PDF]

open access: yes, 2014
This paper is concerned with the traveling wave solutions and asymptotic spreading of delayed lattice differential equations without quasimonotonicity.
Pan, Shuxia
core  

Current Tracking Adaptive Control of Brushless DC Motors

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García   +3 more
wiley   +1 more source

Asymptotic Behavior of Solutions of Free Boundary Problem with Logistic Reaction Term

open access: yesJournal of Applied Mathematics, 2014
We study a free boundary problem for a reaction diffusion equation modeling the spreading of a biological or chemical species. In this model, the free boundary represents the spreading front of the species.
Jingjing Cai
doaj   +1 more source

Spatial assortment of mixed propagules explains the acceleration of range expansion. [PDF]

open access: yesPLoS ONE, 2014
Range expansion of spreading organisms has been found to follow three types: (i) linear expansion with a constant rate of spread; (ii) bi-phase expansion with a faster linear expansion following a slower linear expansion; and (iii) accelerating expansion
Andriamihaja Ramanantoanina   +2 more
doaj   +1 more source

Rateless-Coding-Assisted Multi-Packet Spreading over Mobile Networks

open access: yes, 2014
A novel Rateless-coding-assisted Multi-Packet Relaying (RMPR) protocol is proposed for large-size data spreading in mobile wireless networks. With this lightweight and robust protocol, the packet redundancy is reduced by a factor of $\sqrt n$, while the ...
Dai, Huaiyu   +2 more
core   +1 more source

Interacting quantum walkers: Two-body bosonic and fermionic bound states [PDF]

open access: yes, 2015
We investigate the dynamics of bound states of two interacting particles, either bosons or fermions, performing a continuous-time quantum walk on a one-dimensional lattice.
Krapivsky, P. L.   +2 more
core   +3 more sources

Asymptotic comparison of three spread estimators based on Roll’s model

open access: yesPhysica A: Statistical Mechanics and its Applications, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gao, Yang   +4 more
openaire   +2 more sources

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