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In this article we develop a systematic approach to enforce strong feasibility of probabilistically constrained stochastic model predictive control problems for linear discretetime systems under affine disturbance feedback policies. Two approaches are presented, both of which capitalize and extend the machinery of invariant sets to a stochastic environment.(More)
We characterize the maximum controlled invariant (MCI) set for discreteas well as continuous-time nonlinear dynamical systems as the solution of an infinitedimensional linear programming problem. For systems with polynomial dynamics and compact semialgebraic state and control constraints, we describe a hierarchy of finite-dimensional linear matrix(More)
In a previous work we developed a convex infinite dimensional linear programming (LP) approach to approximating the region of attraction (ROA) of polynomial dynamical systems subject to compact basic semialgebraic state constraints. Finite dimensional relaxations to the infinite-dimensional LP lead to a truncated moment problem in the primal and a(More)
We investigate the turnpike and dissipativity properties of continuous-time optimal control problems. These properties play a key role in the analysis and design of schemes for dynamic real-time optimization and economic model predictive control. We show in a continuous-time setting that dissipativity of a system with respect to a steady state implies the(More)
This paper considers linear discrete-time systems with additive, bounded, disturbances subject to hard control input bounds and a stochastic constraint on the amount of state-constraint violation averaged over time. The amount of violations is quantified by a loss function and the averaging can be weighted, corresponding to exponential forgetting of past(More)
Four subcutaneous administrations of 2 g/kg of tetrachloromethane to albino rats inhibited the hepatic activity of superoxide dismutase, catalase, glutathione peroxidase, reduced the concentrations of tocopherol, retinol, ascorbic acid, glutathiones, decreased the plasma level of ceruloplasmin and the total antioxidative activity of liver tissue. The(More)
This work presents a method to obtain inner and outer approximations of the region of attraction of a given target set as well as an admissible controller generating the inner approximation. The method is applicable to constrained polynomial dynamical systems and extends to trigonometric and rational systems. The method consists of three steps: compute(More)
This paper proposes a stability verification method for systems controlled by an early terminated first-order method (e.g., an MPC problem approximately solved by a fixed number of iterations of the fast gradient method). The method is based on the observation that each step of the vast majority of first-order methods is characterized by a(More)
This paper considers linear discrete-time systems with additive bounded disturbances subject to hard control input bounds and a stochastic requirement on the number of state-constraint violations averaged over time. This specification facilitates the exploitation of the information on the number of past constraint violations, and consequently enables a(More)