1 citations · 1 across the 3 of their papers we have counts for
5 papers
RMF accessibility percolation on oriented graphs
Frank Duque, Daniel Ramirez-Gomez, Alejandro Roldán-Correa +1
Accessibility percolation is a new type of percolation problem inspired by evolutionary biology: a random number, called its fitness, is assigned to each vertex of a graph, then a…
Extinction time in growth models subject to geometric catastrophes
Valdivino Vargas Junior, Fábio Prates Machado, Alejandro Roldán-Correa
Recently, different dispersion strategies in population models subject to geometric catastrophes have been considered as strategies to improve the chance of po\-pu\-lation's surviv…
Evolution with mass extinction on
Carolina Grejo, Fabio Lopes, Fábio Machado +1
We propose a stochastic model for evolution through mutation and natural selection of a population that evolves on a $\bbT_d^+$ tree. We think of this model as a way of describing…
Colonization and Collapse
Fábio Prates Machado, Alejandro Roldán-Correa, Rinaldo B. Schinazi
Many species live in colonies that thrive for a while and then collapse. Upon collapse very few individuals survive. The survivors start new colonies at other sites that thrive unt…
The fitness of the strongest individual in the subcritical GMS model
Carolina Grejo, Fábio P. Machado, Alejandro Roldán-Correa
We derive the strongest individual fitness distribution on a variation for a species survival model proposed by Guiol, Machado and Schinazi \cite{GMS11}. We point out to the fact t…