Publications (34)
Multi-agent consensus over time-invariant and time-varying signed digraphs via eventual positivity
Angela Fontan, Lingfei Wang, Yiguang Hong +2
Laplacian dynamics on signed digraphs have a richer behavior than those on nonnegative digraphs. In particular, for the so-called "repelling" signed Laplacians, the marginal stabil…
Multiequilibria analysis for a class of collective decision-making networked systems
Angela Fontan, Claudio Altafini
The models of collective decision-making considered in this paper are nonlinear interconnected cooperative systems with saturating interactions. These systems encode the possible o…
Geometric Control Theory Over Networks: Minimal Node Cardinality Disturbance Decoupling Problems
Luca Claude Gino Lebon, Claudio Altafini
In this paper we show how to formulate and solve disturbance decoupling problems over networks while choosing a minimal number of input and output nodes. Feedback laws that isolate…
Stabilization of Stochastic Quantum Dynamics via Open and Closed Loop Control
Francesco Ticozzi, Kazunori Nishio, Claudio Altafini
In this paper we investigate parametrization-free solutions of the problem of quantum pure state preparation and subspace stabilization by means of Hamiltonian control, continuous…
Computing frustration and near-monotonicity in deep neural networks
Joel Wendin, Erik G. Larsson, Claudio Altafini
For the signed graph associated to a deep neural network, one can compute the frustration level, i.e., test how close or distant the graph is to structural balance. For all the pre…
Almost Global Stochastic Feedback Stabilization of Conditional Quantum Dynamics
Claudio Altafini, Francesco Ticozzi
We propose several parametrization-free solutions to the problem of quantum state reduction control by means of continuous measurement and smooth quantum feedback. In particular, w…