Problèmes rencontrés dans mon parcours mathématique: Un bilan. (Problems I have come across during my mathematical career: A balance) (Q921671)

The paper is based on the address delivered by the author at the symposium in his honor held in Paris in 1988. At first the author sketches his personal history and describes the main steps of his research activity: cobordism, singularities of differential maps, catastrophe theory. Then he points out some problems he has studied during his life and outlines some research programs starting from them. The subjects are too technical and have too many mutual implications to be summarized in the narrow space of a review. The paper itself indeed is a review of the problems the author has come across during his exceptional mathematical career. The main topics the problems concern are: decompositions of analytic functions, canonical stratifications of function spaces, algebraic actions of non-compact groups, non-separated stratified spaces.