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Transactions of the American Mathematical Society

Published by the American Mathematical Society since 1900, Transactions of the American Mathematical Society is devoted to longer research articles in all areas of pure and applied mathematics.

ISSN 1088-6850 (online) ISSN 0002-9947 (print)

The 2020 MCQ for Transactions of the American Mathematical Society is 1.48.

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Stability results for a diffusion equation with functional drift approximating a chemotaxis model
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by James M. Greenberg and Wolfgang Alt PDF
Trans. Amer. Math. Soc. 300 (1987), 235-258 Request permission

Abstract:

A hyperbolic-parabolic "chemotaxis" system modelling aggregation of motile cells by production of a diffusible chemoattractant, is approximated by a scalar diffusion equation for the cell density, where the drift term is an explicit functional of the current density profile. We prove the unique existence and, using the Hopf-Cole transformation, the local stability of an equilibrium, i.e. a steady aggregation state. We also discuss the limiting hyperbolic case of vanishing random motility with the formation of shocks describing cell clumps.
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Additional Information
  • © Copyright 1987 American Mathematical Society
  • Journal: Trans. Amer. Math. Soc. 300 (1987), 235-258
  • MSC: Primary 35K55; Secondary 35B35, 35Q99, 92A05, 92A09
  • DOI: https://doi.org/10.1090/S0002-9947-1987-0871674-4
  • MathSciNet review: 871674