Results 51 to 60 of about 5,041 (182)
Mathematical Methods in the Applied Sciences, EarlyView.ABSTRACT The main results of this paper are the global existence and long time behavior of solutions of a fractional wave equation with a nonlocal nonlinearity. The techniques in this work rely on norm estimates of the solutions of εutt+ut+(−Δ)βu=0,u(0,x)=φ(x),ut(0,x)=ψ(x),$$ \varepsilon {u}_{tt}+{u}_t+{\left(-\Delta \right)}^{\beta }u=0,\kern1em u ...
Ibrahim Ahmad Suleman, Mokhtar Kirane
wiley +1 more source
Front Propagation of Exponentially Truncated Fractional-Order Epidemics
Fractal and Fractional, 2022 The existence of landscape constraints in the home range of living organisms that adopt Lévy-flight movement patterns, prevents them from making arbitrarily large displacements.
Afshin Farhadi, Emmanuel Hanert
doaj +1 more source
Oikos, EarlyView.The response of dispersers to landscape changes depends on both external environmental conditions and individual internal conditions, as well as movement and orientation abilities. Plasticity in habitat selection may also affect how individuals respond to landscape changes.
Érika Garcez da Rocha +4 more
wiley +1 more source
The topology of Rayleigh-Levy flights in two dimensions
Astronomy & AstrophysicsRayleigh-Lévy flights are simplified cosmological tools that capture certain essential statistical properties of the cosmic density field, including hierarchical structures in higher-order correlations, making them a valuable reference for studying the ...
Bernardo Reginald Christian +3 more
doaj +1 more source
Cuckoo search via Lévy flights for the capacitated vehicle routing problem
Journal of Industrial Engineering International, 2017 For this paper, we explored the implementation of the cuckoo search algorithm applied to the capacitated vehicle routing problem. The cuckoo search algorithm was implemented with Lévy flights with the 2-opt and double-bridge operations, and with 500 ...
Jon Henly Santillan +3 more
doaj +1 more source
L\'evy walks on lattices as multi-state processes
, 2015 Continuous-time random walks combining diffusive scattering and ballistic propagation on lattices model a class of L\'evy walks. The assumption that transitions in the scattering phase occur with exponentially-distributed waiting times leads to a ...
Cristadoro, Giampaolo +3 more
core +1 more source
Space-time fractional reaction-diffusion equations associated with a generalized Riemann-Liouville fractional derivative [PDF]
, 2014 This paper deals with the investigation of the computational solutions of an unified fractional reaction-diffusion equation, which is obtained from the standard diffusion equation by replacing the time derivative of first order by the generalized Riemann-
Haubold, H. J. +2 more
core +3 more sources
Liquid Phase TEM of Diffusing Emulsion Droplets
Small, EarlyView.Motion of emulsion droplets was observed via in situ liquid phase transmission electron microscopy. Analysis revealed that the motion is self‐affine and influenced by multiple stochastic processes, as well as a fractal landscape created by the electron beam.
Maria A. Vratsanos +4 more
wiley +1 more source
An improved QPSO algorithm base on social learning and Lévy flights
Systems Science & Control Engineering, 2018 The centre of the potential well of the quantum-behaviour particle swarm optimization (QPSO) is restricted to the super rectangle which is made up of the local optimal position and the global optimal position.
XiaoPing Yuan, Peng Jin, Guopeng Zhou
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Emergence of encounter networks due to human mobility. [PDF]
PLoS ONE, 2017 There is a burst of work on human mobility and encounter networks. However, the connection between these two important fields just begun recently. It is clear that both are closely related: Mobility generates encounters, and these encounters might give ...
A P Riascos, José L Mateos
doaj +1 more source