duality in 19th and 20th century mathematical thinking

Ralf Krömer is Professor of mathematics and its didactics at the Bergische Universität Wuppertal. His research focuses mainly on the history of mathematics from the late 17th to the 20th century. His research interests include in particular historical themes around Leibniz, Poincaré, the Bourbaki group, structural mathematics, and category theory, but also philosophical aspects of these topics as well as the use of the history of mathematics in its teaching.

Emmylou Haffner is a CNRS research scientist at the Institut des Textes et Manuscrits Modernes (École Normale Supérieure). Her research focuses on the history of mathematics in the 19th and 20th centuries, with particular interest in manuscripts and genetic criticism.