Preprint
Sep 2026
When higher-order interactions matter: reducibility, parsimony, and microscopic organization
The current debate on higher-order interactions raises a fundamental question: when can systems organized through group interactions be faithfully represented within a graph-based formalism? Recent results show that graph descriptions can reproduce higher-order dynamics exactly or preserve selected macroscopic observab...
A. Arenas, F. Battiston, Andrea Gabrielli
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