Jeho doktorát byla získána z Göttingenu, kde je jeho doktorských studií byly pod dohledem Emmy Noether. Téma navržené Emmy Noether byla na téma assiciated na Riemann-Roch veta a je to skutečně téma, na kterém jeho disertační práce byla napsána.
His doctorate was obtained from Göttingen where his doctoral studies were supervised by Emmy Noether . The topic proposed by Emmy Noether was on a topic assiciated to the Riemann -Roch theorem and this was indeed the topic on which his dissertation was written.