multi-particle system under a proximity-based communication topology on
the Lorentz group SO(1,1). With the help of the Riemannian
manifold structure on the Lorentz group SO(1,1), we design a
rendezvous controller for particles by using the covariant derivative,
parallel transport, and Riemannian logarithm map on SO(1,1). We
further show that the proposed controller can guarantee that the
distance between each particle converges to zero and maintain the
connectivity of the communication topology if the initial network is
connected. Several numerical simulations are provided to verify and
illustrate the theoretical results.