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Time-delayed theory of the neolithic transition in Europe
Fort Viader, Joaquim (Universitat de Girona. Departament de Física)
Méndez López, Vicenç (Universitat Internacional de Catalunya. Facultat de Ciències de la Salut)
American Physical Society

Data: 1999
Resum: The classical wave-of-advance model of the neolithic transition (i. e. , the shift from hunter-gatherer to agricultural economies) is based on Fisher's reaction-diffusion equation. Here we present an extension of Einstein's approach to Fickian diffusion, incorporating reaction terms. On this basis we show that second-order terms in the reaction-diffusion equation, which have been neglected up to now, are not in fact negligible but can lead to important corrections. The resulting time-delayed model agrees quite well with observations.
Drets: Tots els drets reservats.
Llengua: Anglès
Document: article ; publishedVersion
Publicat a: Physical review letters, Vol. 82, Issue 4 (January 1999) , p. 867-870, ISSN 0031-9007

DOI: 10.1103/PhysRevLett.82.867

4 p, 150.4 KB

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