Ítem
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Méndez López, Vicenç
Fort, Joaquim Rotstein, Horacio G. Fedotov, Sergei |
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| 2003 | |
| The front speed problem for nonuniform reaction rate and diffusion coefficient is studied by using singular perturbation analysis, the geometric approach of Hamilton-Jacobi dynamics, and the local speed approach. Exact and perturbed expressions for the front speed are obtained in the limit of large times. For linear and fractal heterogeneities, the analytic results have been compared with numerical results exhibiting a good agreement. Finally we reach a general expression for the speed of the front in the case of smooth and weak heterogeneities | |
| application/pdf | |
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1539-3755 (versió paper) 1550-2376 (versió electrònica) |
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| http://hdl.handle.net/10256/7706 | |
| eng | |
| American Physical Society | |
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Reproducció digital del document publicat a: http://link.aps.org/doi/10.1103/PhysRevE.68.041105 Articles publicats (D-F) |
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| © Physical Review E, 2003, vol. 68, núm. 4, p. 041105 | |
| Tots els drets reservats | |
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Equacions de reacció-difusió
Reaction-diffusion equations |
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| Speed of reaction-diffusion fronts in spatially heterogeneous media | |
| info:eu-repo/semantics/article | |
| DUGiDocs |
