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Multidelayed random walks: Theory and application to the neolithic transition in Europe

We present a model in which particles (or individuals of a biological population) disperse with a rest time between consecutive motions (or migrations) which may take several possible values from a discrete set. Particles (or individuals) may also react (or reproduce). We derive a new equation for the effective rest time T˜ of the random walk. Application to the neolithic transition in Europe makes it possible to derive more realistic theoretical values for its wavefront speed than those following from the single-delayed framework presented previously [J. Fort and V. Méndez, Phys. Rev. Lett. 82, 867 (1999)]. The new results are consistent with the archaeological observations of this important historical process

© Physical Review E, 2004, vol. 70, núm. 3, p. 031913-1 - 031913-6

American Physical Society

Autor: Fort, Joaquim
Debnarayan, Jana
Humet Coderch, Josep Maria
Data: 2004
Resum: We present a model in which particles (or individuals of a biological population) disperse with a rest time between consecutive motions (or migrations) which may take several possible values from a discrete set. Particles (or individuals) may also react (or reproduce). We derive a new equation for the effective rest time T˜ of the random walk. Application to the neolithic transition in Europe makes it possible to derive more realistic theoretical values for its wavefront speed than those following from the single-delayed framework presented previously [J. Fort and V. Méndez, Phys. Rev. Lett. 82, 867 (1999)]. The new results are consistent with the archaeological observations of this important historical process
Format: application/pdf
ISSN: 1539-3755 (versió paper)
1550-2376 (versió electrònica)
Accés al document: http://hdl.handle.net/10256/7702
Llenguatge: eng
Editor: American Physical Society
Col·lecció: Reproducció digital del document publicat a: http://link.aps.org/doi/10.1103/PhysRevE.70.031913
Articles publicats (D-F)
És part de: © Physical Review E, 2004, vol. 70, núm. 3, p. 031913-1 - 031913-6
Drets: Tots els drets reservats
Matèria: Neolític -- Models matemàtics
Neolithic period -- Mathematical models
Rutes aleatòries (Matemàtica)
Random walks
Títol: Multidelayed random walks: Theory and application to the neolithic transition in Europe
Tipus: info:eu-repo/semantics/article
Repositori: DUGiDocs

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