Project 2019-2023 by Italian MIUR
PRIN 2017
The research targets will be achieved through a collective effort among the scholars of the three units. In relationship with the previously described project targets, Salerno research unit will mainly develop the following specific sub-tasks:
WP2: To investigate the role of information measures on the relevant characteristics of coherent systems. Specifically, we aim to construct new information indices that take into account not only the mean information content of the system random lifetime, but also the variability of such information content in suitable ensembles of systems. This will provide new criteria to assess the reliability of engineering system formed by several components, also with the aim of improving the ageing properties of the involved systems. The research will include also the extension of the Gini-type index to the multidimensional case, in collaboration with Napoli unit.
WP3: Evolutionary models stemmed from the simplest exponential curve are based on constraints and factors that take into account environmental factors and resources. Along the lines drawn in recent researches, we aim to construct a new growth model that is similar to the Gompertz law and the Korf model, but is governed by fractional derivatives. The expected results include the analysis of the relative growth rate and the construction of suitable birth-death processes whose mean evolves as the deterministic model. We aim to validate the models statistically, and to apply them to a suitable dataset on the waste collection in Campania region.
WP4: In the same spirit of previous investigations, we propose to analyze new variants of the telegraph process and to apply the new results to evolution problems of alternating behavior. Specifically, we aim to obtain the probability distribution of the telegraph process in the presence of two alternating boundaries, and to study the relevant properties of these processes. Moreover, multivariate generalizations, like the Rayleigh-type composition of telegraph processes, are considered as well.
WP6: Diffusion processes and Gauss-Markov processes are often used to describe the dynamics of neuronal models. Here, we extend previous results, by constructing simulation procedures for neuronal networks, in order to simulate the sample paths of multidimensional Gauss-Markov processes in the presence of suitable time-dependent reflecting boundaries. The related computations will be compared with the similar analysis performed by the Napoli Unit. This will allow to come to an overall validation of the results thus obtained, and to study complex behaviors of the firing activity of interacting neuronal units.