Fábio P. Machado

activity

20242026

collaborators

Showing 2026Show all

2 papers · 1 filter

math.PR2026

Extinction and Survival in an Interval-Activation Frog Model on \mathbb{Z} with Random Survival Parameters and Symmetric Random Walks

Gustavo Oshiro de Carvalho, Fábio Prates Machado, José Hermenegildo Ramírez-González

We study an interval-activation frog model on $\mathbb Z$ with i.i.d.\ initial numbers of frogs $(η_x)_{x\in\mathbb Z}$, satisfying $0<\mathbb{E}[η_0]<\infty$. Frogs at the o…

math.PR2026

The Frog Model on $Z$ with Discrete Weibull Lifetimes and Random Parameter $p$

J. H. Ramírez González, Gustavo O. Carvalho, Fábio P. Machado

We study the frog model on $Z$ with particle wise discrete Weibull lifetimes. Each particle has an i.i.d. survival parameter $π \in (0, 1)$ ; conditionally on $π = p$ , its lifet…

Extinction and Survival in an Interval-Activation Frog Model on \mathbb{Z} with Random Survival Parameters and Symmetric Random Walks

The Frog Model on Z with Discrete Weibull Lifetimes and Random Parameter p

The Frog Model on $Z$ with Discrete Weibull Lifetimes and Random Parameter $p$