Max Wilhelm Dehn (1878 - 1952)

* 13 November 1878, † 27 June 1952

Max Wilhelm Dehn was born on 13 November 1878 in Hamburg, Germany. Dehn wrote one of the first systematic expositions of topology (1907) and later formulated important problems on group presentations, namely the word problem and the isomorphism problem. Max Wilhelm Dehn died on 27 June 1952 in Black Mountain, North Carolina, USA.