Resultats globals: 2 registres trobats en 4.45 segons.
Articles, 2 registres trobats
Articles 2 registres trobats  
1.
6 p, 156.9 KB Segregation and pursuit waves in activator-inhibitor systems / Méndez López, Vicenç (Universitat Autònoma de Barcelona. Departament de Física) ; Horsthemke, Werner (Southern Methodist University. Department of Chemistry) ; Zemskov, Evgeny P. (Russian Academy of Sciences. Computing Centre) ; Casas Vázquez, José (Universitat Autònoma de Barcelona. Departament de Física)
We investigate the effects of cross-diffusion on propagating waves in an activator-inhibitor system. The model consists of a piecewise linear approximation of FitzHugh-Nagumo kinetics and a cross-diffusion term for either the activator or the inhibitor. [...]
2007 - 10.1103/PhysRevE.76.046222
Physical review. E : Statistical, nonlinear, and soft matter physics, Vol. 76, Number 4 (October 2007) , p. 046222/1-046222/6  
2.
7 p, 162.0 KB Variational principles and the shift in the front speed due to a cutoff / Méndez López, Vicenç (Universitat Autònoma de Barcelona. Departament de Física) ; Campos, Daniel (Universitat Autònoma de Barcelona. Departament de Física) ; Zemskov, Evgeny P. (Universitat Autònoma de Barcelona. Departament de Física)
We apply variational principles to reaction-diffusion equations in order to predict, for a general reaction term, the sign of the shift in the front speed due to a cutoff. We develop an improved variational principle to obtain the shift in the front speed for a wide range of reaction terms, and the theoretical results so obtained are in excellent agreement with numerical solutions. [...]
2005 - 10.1103/PhysRevE.72.056113
Physical review. E : Statistical, nonlinear, and soft matter physics, Vol. 72, Number 5 (November 2005) , p. 056113/1-056113/7  

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