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math.PR2024
A computational approach to extreme values and related hitting probabilities in level-dependent quasi-birth-death processes
Antonio Di Crescenzo, Antonio Gómez-Corral, Diana Taipe
This paper analyzes the dynamics of a level-dependent quasi-birth-death process , i.e., a bi-variate Markov chain defined on the countable state…
math.PR2024
Modelling the random spreading of fake news through a two-dimensional time-inhomogeneous birth-death process
Antonio Di Crescenzo, Paola Paraggio
We consider a two-dimensional time-inhomogeneous birth-death process to model the time-evolution of fake news in a population. The two components of the process represent, respecti…