New tools for robustness analysis

The author provides a personal perspective on research concerning Kharitonov´s theorem of robustness analysis, as well as extensions and generalizations of this theorem. He discusses only a selected subset of the published literature which he feels provides the uninitiated reader with a coherent path through the rapidly expanding diversity of results. After a statement of Kharitonov´s theorem and its limitations, he considers such issues as polytope stability problems and the edge theorem, and more general coefficient dependencies on perturbations