This paper is devoted to the qualitative analysis of a new broad class of nonlinear initial value problems that model evolution and selection in living systems derived by the mathematical tools of the kinetic theory of active particles. The paper is divided into two parts. The first shows how to obtain the nonlinear equations with proliferative/distructive nonlinear terms. The latter presents a detailed analysis of the related initial value problem. In particular, it is proved that the corresponding initial value problem admits a unique non-negative maximal solution. However, the solution cannot be in general global in time, due to the possibility of blow-up. The blow-up occurs when the biological life system is globally proliferative, see Theorem 3.3.
On an initial value problem modeling evolution and selection in living systems
PUCCI, Patrizia;SALVATORI, Maria Cesarina
2014
Abstract
This paper is devoted to the qualitative analysis of a new broad class of nonlinear initial value problems that model evolution and selection in living systems derived by the mathematical tools of the kinetic theory of active particles. The paper is divided into two parts. The first shows how to obtain the nonlinear equations with proliferative/distructive nonlinear terms. The latter presents a detailed analysis of the related initial value problem. In particular, it is proved that the corresponding initial value problem admits a unique non-negative maximal solution. However, the solution cannot be in general global in time, due to the possibility of blow-up. The blow-up occurs when the biological life system is globally proliferative, see Theorem 3.3.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
