Andrée Ehresmann


Andrée Ehresmann is a French mathematician specialising in category theory. A researcher at CNRS from 1957 to 1963, she was awarded a Ph.D. in 1962 under Gustave Choquet. She is an Emeritus Professor at IRCAM, at the University of Picardie Jules Verne, having worked there from 1967.
Ehresmann has published over a hundred works on Analysis, Category Theory and the modeling of complex autonomous systems..
She developed, with J.-P. Vanbremeersch a model of Memory Evolutive Systems, which proposes a mathematical model for 'living' systems with a hierarchy of complex components with multiple temporalities, such as biological, neuro-cognitive, or social systems. Based on a theory of 'dynamic' categories, evolving memory systems can analyze complexity, emergence and self-organization. She is the director of the mathematical journal Cahiers de Topologie et Géométrie Différentielle Catégoriques.