Differential-Algebraic Equations: A Projector Based Analysis

Differential algebraic equations (DAEs), including so-called descriptor systems, began to attract significant research interest in applied and numerical mathematics in the early 1980s, no more than about three decades ago. In this relatively short time, DAEs have become a widely acknowledged tool to model processes subjected to constraints, in order to  simulate and to control processes in various application fields such as network simulation, chemical kinematics, mechanical engineering, sy