Part I Mathematical Methods.-On Some Open Problems in Optimal Control.-On Nonlocal Normal Forms of Linear Second Order Mixed Type PDEs on the Plane.-Discrete Filippov-Type Stability for One-Sided Lipschitzian Dierence Inclusions.-Solution Stability and Path-Following for a Class of Generalized Equations.-On the Dynamic Programming Approach to Incentive Constraint Problems.-A Functional Analytic Approach to a Bolza Problem.-On the Generalized Duality Principle for State-Constrained Control and State Estimation Under Impulsive Inputs.

-Positive Approximations of the Inverse of Fractional Powers of SPD M-Matrices.-A General Lagrange Multipliers Theorem and Related Questions.-Strict Dissipativity Implies Turnpike Behavior for Time Varying Discrete Time Optimal Control Problems.-Part II Economics and Environmental Models.-Optimal Exploitation of Renewable Resources: Lessons in Sustainability from an Optimal Growth Model of Natural Resource Consumption.-(LNG) Arbitrage, Intertemporal Market Equilibrium and (Political) Uncertainty.-The Deterministic Optimal Liquidation Problem.-Dynamic Models of the Firm with Green Energy and Goodwill.

-An Extended Integrated Assessment Model for Mitigation & Adaptation Policies on Climate Change.-Part III Population Dynamics and Spatial Models.-Optimal Population Growth as an Endogenous Discounting Problem: The Ramsey Case.-Does Demography Change Wealth Inequality?-Stability Analysis of a New E-Rumor Model.-Optimal Spatiotemporal Management of Resources and Economic Activities Under Pollution Externalities.-Some Regional Control Problems for Population Dynamics.