3 papers
math.AP2024
A stochastic population model with hierarchic size-structure
Carles Barril, Àngel Calsina, József Z. Farkas
We consider a hierarchically structured population in which the amount of resources an individual has access to is affected by individuals that are larger, and that the intake of r…
q-bio.PE2023
On competition through growth reduction
Carles Barril, Àngel Calsina, Odo Diekmann +1
We consider a population organised hierarchically with respect to size in such a way that the growth rate of each individual depends only on the presence of larger individuals. As…
math.AP2019
Boundary perturbations and steady states of structured populations
Àngel Calsina, József Z. Farkas
In this work we establish conditions which guarantee the existence of (strictly) positive steady states of a nonlinear structured population model. In our framework the steady stat…