Per citar aquest document: http://ddd.uab.cat/record/118210
Variational principles and the shift in the front speed due to a cutoff
Méndez López, Vicenç (Universitat Internacional de Catalunya. Departament de Medicina)
Campos Moreno, Daniel (Universitat Autònoma de Barcelona. Grup de Física Estadística)
Zemskov, Evgeny P. (Universitat Autònoma de Barcelona. Grup de Física Estadística)

Data: 2005
Resum: 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. This work proves that variational principles are an optimal framework to deal with fronts propagating into unstable and metastable states under cutoff.
Drets: Tots els drets reservats.
Llengua: Anglès.
Document: article ; recerca ; publishedVersion
Publicat a: Physical review. E : statistical, nonlinear, and soft matter physics, Vol. 72, Number 5 (November 2005) , p. 056113/1-056113/7, ISSN 1539-3755

DOI: 10.1103/PhysRevE.72.056113


7 p, 162.0 KB

El registre apareix a les col·leccions:
Articles > Articles de recerca
Articles > Articles publicats

 Registre creat el 2014-05-14, darrera modificació el 2016-06-04



   Favorit i Compartir