Control Cost A Minimum Intervention Principle for Admissible Systems

This paper introduces Control Cost within the Paton System as a structural measure of the minimum intervention required to maintain system admissibility. Building on Admissibility Control the framework defines control cost over admissible trajectories as the integral of applied control input required to preserve positive admissibility margin. The paper establishes a minimum intervention principle stating that admissible systems should be maintained using the least structural input necessary. This provides a domain independent method for analysing control efficiency intervention limits and stabilisation strategies without modifying underlying governing equations.