{ "id": "1010.5461", "version": "v2", "published": "2010-10-26T17:02:09.000Z", "updated": "2011-01-25T10:58:25.000Z", "title": "Rate of convergence to an asymptotic profile for the self-similar fragmentation and growth-fragmentation equations", "authors": [ "María J. Cáceres", "José A. Cañizo", "Stéphane Mischler" ], "journal": "Journal de Math\\'emathiques Pures et Appliqu\\'ees, Vol. 96, No. 4, pp. 334-362 (2011)", "doi": "10.1016/j.matpur.2011.01.003", "categories": [ "math.AP" ], "abstract": "We study the asymptotic behavior of linear evolution equations of the type \\partial_t g = Dg + Lg - \\lambda g, where L is the fragmentation operator, D is a differential operator, and {\\lambda} is the largest eigenvalue of the operator Dg + Lg. In the case Dg = -\\partial_x g, this equation is a rescaling of the growth-fragmentation equation, a model for cellular growth; in the case Dg = -x \\partial_x g, it is known that {\\lambda} = 2 and the equation is the self-similar fragmentation equation, closely related to the self-similar behavior of solutions of the fragmentation equation \\partial_t f = Lf. By means of entropy-entropy dissipation inequalities, we give general conditions for g to converge exponentially fast to the steady state G of the linear evolution equation, suitably normalized. In both cases mentioned above we show these conditions are met for a wide range of fragmentation coefficients, so the exponential convergence holds.", "revisions": [ { "version": "v2", "updated": "2011-01-25T10:58:25.000Z" } ], "analyses": { "keywords": [ "growth-fragmentation equation", "linear evolution equation", "asymptotic profile", "case dg", "exponential convergence holds" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010arXiv1010.5461C" } } }