Karl Peter Hadeler

K.P. Hadeler (1936 - 2017) started studying mathematics and biology at the University of Hamburg in 1956. The interdisciplinary field of mathematical biology had not yet been invented and he was a pioneer in bringing those two subjects together and helping shape an emergent discipline. Hadeler held professorships at the Universities of Erlangen and Niemegen in the 60's, and in 1971 he obtained a Lehrstuhl für Biomathematik at the University of Tübingen. He published more than 200 research articles and was a co-founder of the flagship journal, the Journal of Mathematical Biology. His research has inspired generations of young researchers and Prof. Hadeler was active in research up until his death in early 2017. The textbook Topics in Mathematical Biology was his final passion, and it is unfortunate that he was unable to witness its publication. However, we feel it is a fitting legacy for a true innovator.