A passive guidance system for a robotic walking assistant using brakes D. Fontanelli, A. Giannitrapani, L. Palopoli, D. Prattichizzo Dec 1, 2015 PDF Cite Multi-agent systems Related When Helbing meets Laumond: The Headed Social Force Model Asynchronous distributed method of multipliers for constrained nonconvex optimization Distributed set membership estimation with time-varying graph topology Collective circular motion of multi-vehicle systems Experimental validation of collective circular motion for nonholonomic multi-vehicle systems