mathematician university professor
Siebert studied mathematics starting 1984 at the University of Erlangen. In 1986, he changed to the University of Bonn and in 1987 to the University of Göttingen where he finished his Diplom in 1989 under the supervision of Hans Grauert with distinction. He became Grauert"s Doctor of Philosophy student and assistant in Göttingen.
He received his Doctor of Philosophy in 1992 (Faserzykelräume, geometrische Plattifikation und meromorphe Äquivalenzrelationen).
A stay at the Courant Institute followed in 1993-1994 after which we went to Bochum. In 1997-1998 he spent some time at the Massachusetts Institute of Technology as a visiting scholar before completing his habilitation in Bochum in 1998 (Gromov–Witten invariants for general symplectic manifolds). As a German Research Foundation (Deutsche Forschungsgemeinschaft)-Heisenberg Fellow, he went to the Universität Paris VI/Universität Paris VII from 2000 to 2002.
From there, he was called to a professorship at the Albert-Ludwigs-Universität Freiburg in 2002.
He moved on to the Universität Hamburg in 2008 where he has been teaching and researching since. In 2011, he became the head of the Graduiertenkolleg Mathematics Inspired by String Theory and QFT. In his research, Bernd Siebert contributed substantially to the theory of Gromov–Witten invariants.
Around 2002 by his insights in logarithmic geometry, he entered into an ongoing joint research program with Mark Gross. This generated a sequence of relevant papers that relate to Mirror Symmetry and tropical geometry.
In 2014, jointly with Mark Gross, he became an invited speaker at the International Congress of Mathematics in Seoul for the section complex geometry (Local mirror symmetry in the tropics).
With M. Gross: Logarithmic Gromov-Witten invariants, J. America Mathematics Society 26 (2013), 451–510. with M. Gross: From real affine geometry to complex geometry, Annual of Mathematics 174 (2011), 1301–1428.
with M. Gross, R. Pandharipande: The tropical vertex, Duke Mathematics
J. 153 (2010), 297–362. with T. Nishinou: Toric degenerations of toric varieties and tropical curves, Duke Mathematics
J. 135 (2006), 1–51. with G. Tian: On the holomorphicity of genus two Lefschetz fibrations, Annals of Mathematics 161 (2005), 955–1016.
Symplectic Gromov-Witten invariants, in: New trends in Algebraic Geometry (Hrsg Fabrizio Catanese, Klaus Hulek, Chris Peters, Miles Reid), Warwick 1996, Cambridge University Press 1998, 375–424.
