4 papers
A diffusion approximation for systems with frequent weak resetting
Tobias Galla
We develop a diffusion approximation for systems subject to fast random resetting by small amplitudes. Equivalently, this describes systems with frequent but small catastrophes. We…
Navigating Uncertainty: Risk-Averse vs. Risk-Prone Strategies in Populations Facing Demographic and Environmental Stochasticity
Rubén Calvo Ibáñez, Miguel Ángel Muñoz, Tobias Galla
Strategies aimed at reducing the negative effects of long-term uncertainty and risk are common in biology, game theory, and finance, even if they entail a cost in terms of mean ben…
Generalised correlations in disordered dynamical systems: Insights from the many-species Lotka-Volterra model
Sebastian Holtedahl Castedo, Joshua Holmes, Joseph William Baron +1
In the study of disordered systems, one often chooses a matrix of independent identically distributed interaction coefficients to represent the quenched random couplings between co…
Higher-order interactions in random Lotka-Volterra communities
Laura Sidhom, Tobias Galla
We use generating functionals to derive a dynamic mean-field description for generalised Lotka-Volterra systems with higher-order quenched random interactions. We use the resulting…