Rinaldo B. Schinazi

collaborators

3 papers

math.PR2025

An elementary proof of existence and uniqueness of stationary distributions for irreducible Markov chains

Rinaldo B. Schinazi

Consider an $n \times n$ matrix $P$ with the following properties. All entries in $P$ are positive or $0$ , the sum of each row is 1 and for all $i$ and $j$ in ${1, \dots, n}$ there…

math.PR2023

Does genetic diversity help survival?

Luiz Renato Fontes, Fabio P. Machado, Rinaldo B. Schinazi

We introduce the following model for the evolution of a population. At every discrete time $j \geq 0$ exactly one individual is introduced in the population and is assigned a death…

math.PR2023

Can a single migrant per generation rescue a dying population?

Iddo Ben-Ari, Rinaldo B. Schinazi

We introduce a population model to test the hypothesis that even a single migrant per generation may rescue a dying population. Let $(c_{k})$ be a sequence of real numbers in $(0, 1)$ …