3 papers
physics.bio-ph2026
Impact of Higher-Order Interactions on Collective Motion
Maryam Masoumi, Amir Kargaran, Reza Jafari
Collective motion in self-propelled particle systems has been widely studied using the Vicsek model, which relies on pairwise alignment interactions. We introduce a generalized Vic…
q-bio.PE2026
Predicting success of cooperators across arbitrary heterogeneous environmental landscapes
Amir Kargaran, Kamran Kaveh, Krishnendu Chatterjee
Cooperation is central to the organization of complex biological and social systems. Most theoretical models assume homogeneous environments; in reality, populations inhabit spatia…
physics.soc-ph2025
Hierarchical Balance Theory: Emergence of Instability in Follower Layer Below Critical Temperatures
Amir Kargaran, Houman Jafari, G. Reza Jafari
Hierarchy significantly shapes interactions in social structures by organizing individuals or groups based on status, power, or privilege. This study investigates how hierarchy aff…