Arnold Schönhage (born 1 December 1934 in Lockhausen, now Bad Salzuflen) is a German mathematician and computer scientist. Schönhage was professor at the Rheinische Friedrich-Wilhelms-Universität, Bonn, and also in Tübingen and Konstanz. He now lives near Bonn. Together with Volker Strassen he developed the Schönhage–Strassen algorithm for fast integer multiplication that has a run-time of O(N log N log log N). Schönhage designed and implemented together with Andreas F. W. Grotefeld and Ekkehart Vetter a multitape Turing machine, called TP, in software. The machine is programmed in TPAL, an assembler language. They implemented numerous numerical algorithms including the Schönhage–Strassen algorithm on this machine. External links Homepage with list of publications Schönhage's TP page with short introduction, samples and download link 1934 births Living people People from Bad Salzuflen German computer scientists Approximation theorists People from the Free State of Lippe 20th-century German mathematicians 21st-century German mathematicians Academic staff of the University of Bonn Academic staff of the University of Tübingen Academic staff of the University of Konstanz University of Cologne alumni