Results 21 to 30 of about 45,726 (269)
Asymptotic-Preserving Neural Networks for multiscale hyperbolic models of epidemic spread
Mathematical Models and Methods in Applied Sciences, 2022 When investigating epidemic dynamics through differential models, the parameters needed to understand the phenomenon and to simulate forecast scenarios require a delicate calibration phase, often made even more challenging by the scarcity and uncertainty of the observed data reported by official sources.
Bertaglia, Giulia +3 more
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On spreading sequences and asymptotic structures
Transactions of the American Mathematical Society, 2018 In the first part of the paper we study the structure of Banach spaces with a conditional spreading basis. The geometry of such spaces exhibits a striking resemblance to the geometry of James space. Further, we show that the averaging projections onto subspaces spanned by constant coefficient blocks with no gaps between supports are bounded.
Freeman, D. +3 more
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Capacity Approaching Low Density Spreading in Uplink NOMA via Asymptotic Analysis [PDF]
IEEE Transactions on Communications, 2021 Low-density spreading non-orthogonal multiple-access (LDS-NOMA) is considered where $K$ single-antenna user-equipments (UEs) communicate with a base-station (BS) over $F$ fading sub-carriers.
Hossein Asgharimoghaddam +2 more
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Spreading Dynamics of SHIPR Pyramid Scheme Model on Scale-Free Networks
IEEE Access, 2021 Nowadays, pyramid schemes have caused extremely negative effects on people’s lives and seriously damaged the social economy. With the rapid development of network and communication technology, people’s direct or indirect social interaction ...
Bingchuan Xue +4 more
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Persistence time of SIS infections in heterogeneous populations and networks [PDF]
, 2017 For a susceptible-infectious-susceptible (SIS) infection model in a heterogeneous population, we present simple formulae giving the leading-order asymptotic (large population) behaviour of the mean persistence time, from an endemic state to extinction of
Clancy, Damian
core +2 more sources
On a reaction–diffusion–advection system: fixed boundary or free boundary
Electronic 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
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Asymptotic spreading in heterogeneous diffusive excitable media
Journal of Functional Analysis, 2008 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Berestycki, Henri +2 more
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Spreading Speed in A Nonmonotone Equation with Dispersal and Delay
Mathematics, 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
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Identify hidden spreaders of pandemic over contact tracing networks
Scientific 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
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Influence of the mode of reproduction on dispersal evolution during species invasion [PDF]
ESAIM: Proceedings and Surveys, 2020 We consider a reaction-diffusion-reproduction equation, modeling a population which is spatially heterogeneous. The dispersion of each individuals is influenced by its phenotype.
Calvez Vincent +6 more
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