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Reaction-Superdiffusion Systems in Epidemiology, an Application of Fractional Calculus
Nico Stollenwerk1, João Pedro Boto1
1Centro de Matemática e Aplicações Fundamentais CMAF, Universidade de Lisboa, Avenida Prof. Gama Pinto 2, 1649-003 Lisboa, Portugal.
Abstract:
Spatially extended stochastic processes in epidemiology lead to classical reaction-diffusion process, when infection spreads only locally. This notion can be generalized using fractional derivatives, especially fractional Laplacian operators, leading to Lévy flights and sub- or super-diffusion. Especially super-diffusion is a more realistic mechanism of spreading epidemics than ordinary diffusion.
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