First Passage and First Exit Times for diffusion processes related to a general growth curve
Identificadores
URI: https://hdl.handle.net/10481/88370Metadatos
Afficher la notice complèteAuteur
Albano, Giuseppina; Antonio, Barrera; Giorno, Virginia; Román Román, Patricia; Torres Ruiz, Francisco De AsísEditorial
Elsevier
Date
2023Referencia bibliográfica
G. Albano, A. Barrera, V. Giorno, P. Román-Román, F. Torres-Ruiz. First Passage and First Exit Times for diffusion processes related to a general growth curve. Communications in Nonlinear Science and Numerical Simulation, 126 (2023), 107494
Résumé
Recently a general growth curve including the well known growth equations, such as Malthus, logistic, Bertallanfy, Gompertz, has been studied. We now propose two stochastic formulations of this growth equation. They are obtained starting from a suitable
parametrization of the deterministic model, by adding an additive and multiplicative noise respectively. For these processes we focus attention on the First Passage Time from a barrier and on the First Exit Time from a region delimited by two barriers. We consider thresholds, generally time dependent, for which there exist closed-forms of the probability densities of the first passage time and of the first exit time.