Humboldt Üniversitesi Matematik Bölümünden "Enumerative Geometry of Double Spin Curves"
başlıklı teziyle doktorasını aldı.
Aşağıdaki paragraf bu tezin Teşekkürler bölümünden bir alıntıdır:
"My father gave me the thirst for
knowledge: Every dinner table conversation was a thorough
treatise of a subject from K3 surfaces to Babylonian tablets,
from Russian literature to ship navigation. He also gave me my
thinking voice, on which I’ve come to rely more and more: If
a computation is suspicious, throw it out and begin anew. When
in doubt, write it down. Did you do an example? Shut your
calendar, hide your clock and think. . . If I
occasionally find the light, it is because of you."