Jeans type instability for a chemotactic model of cellular aggregation
European Physical Journal B, ISSN: 1434-6028, Vol: 52, Issue: 3, Page: 433-443
2006
- 24Citations
- 6Captures
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Article Description
We consider an inertial model of chemotactic aggregation generalizing the Keller-Segel model and we study the linear dynamical stability of an infinite and homogeneous distribution of cells (bacteria, amoebae, endothelial cells, ...) when inertial effects are accounted for. These inertial terms model cells directional persistance. We determine the condition of instability and the growth rate of the perturbation as a function of the cell density and the wavelength of the perturbation. We discuss the differences between overdamped (Keller-Segel) and inertial models. Finally, we show the analogy between the instability criterion for biological populations and the Jeans instability criterion in astrophysics.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=33746917528&origin=inward; http://dx.doi.org/10.1140/epjb/e2006-00310-y; http://link.springer.com/10.1140/epjb/e2006-00310-y; http://link.springer.com/content/pdf/10.1140/epjb/e2006-00310-y; http://link.springer.com/content/pdf/10.1140/epjb/e2006-00310-y.pdf; http://link.springer.com/article/10.1140/epjb/e2006-00310-y/fulltext.html; https://link.springer.com/article/10.1140%2Fepjb%2Fe2006-00310-y; http://www.springerlink.com/index/10.1140/epjb/e2006-00310-y; https://dx.doi.org/10.1140/epjb/e2006-00310-y; https://link.springer.com/article/10.1140/epjb/e2006-00310-y; http://www.springerlink.com/index/pdf/10.1140/epjb/e2006-00310-y
Springer Science and Business Media LLC
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