Funktionen
Prof. Dr. Stefan Schreieder
Prof. Dr. Stefan Schreieder
Prof. Dr. Stefan Schreieder
Geschäftsführende Leitung
Institut für Algebraische Geometrie
Mitglieder
Riemann Center for Geometry and Physics
Professorinnen und Professoren
Institut für Algebraische Geometrie
Publikationen
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Optimality of the Prym-Tyurin construction for A_6, (with P. Engel and O. de Gaay Fortman), Preprint 2025, arXiv:2512.04902
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Rationality of hypersurfaces,
arXiv:2510.13679, to appear in the Proceedings of the ICM 2026 -
Matroids and the integral Hodge conjecture for abelian varieties, (with P. Engel and O. de Gaay Fortman), Preprint 2025, arXiv:2507.15704
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Combinatorics and Hodge theory of degenerations of abelian varieties: A survey of the Mumford construction, (with P. Engel and O. de Gaay Fortman), Preprint 2025, arXiv:2507.15695
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On the rationality problem for low degree hypersurfaces, (with J. Lange),
Forum of Mathematics, Pi 2025;13:e25. doi:10.1017/fmp.2025.10016 -
Remarks on Milnor K-theory and Tate's conjecture for divisors,
arXiv:2406.18706, to appear in Commentarii Mathematici Helvetici -
Cycle conjectures and birational invariants over finite fields, (with S. Balkan)
arXiv:2406.14438, to appear in Selecta Mathematica -
Truncated pushforwards and refined unramified cohomology, (with Th. Alexandrou)
arXiv:2406.07092, to appear in Advances in Mathematics - Abelian varieties with no powers isogenous to Jacobians, (with O. de Gaay Fortman)
Compositio Mathematica 161 (2025), 1404--1457.
- Geometric retract rationality of norm varieties,
Math. Research Letters 31 (2024), 1189--1196.
- Zeros of one-forms and homologically trivial fibrations, (with Ruijie Yang)
Michigan Math. Journal 75 (2025), 917--926.
- On Bloch's map for torsion cycles over non-closed fields, (with Th. Alexandrou)
Forum of Mathematics, Sigma (2023), Vol. 11:e53 1–21
- A moving lemma for cohomology with support,
EPIGA, Special volume in honour of C. Voisin, Article No. 20 (2024), 50 pages.
- The diagonal of quartic fivefolds, (with N. Pavic),
Algebraic Geometry 10 (6) (2023), 754-778
- Infinite torsion in Griffiths groups,
J. Eur. Math. Soc. 27 (2025), 2571-2601.
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Refined unramified cohomology of schemes,
Compositio Mathematica 159 (2023), 1466-1530. -
Unramified cohomology, algebraic cycles and rationality,
in: G. Farkas et al. (eds), Rationality of Varieties,
Progress in Mathematics 342, Birkhäuser (2021), 345--388. -
Equality in the Bogomolov--Miyaoka--Yau inequality in the non-general type case, (with F. Hao)
J. reine angew. Math. 775 (2021), 87--115. - Torsion orders of Fano hypersurfaces
Algebra & Number Theory 15 (2021), 241--270.
- Holomorphic one-forms without zeros on threefolds, Correction, (with F. Hao)
Geometry & Topology 25 (2021), 409--444.
- Zeros of holomorphic one-forms and topology of Kähler manifolds,
(Appendix written jointly with H.-Y. Lin)
International Mathematics Research Notices, 2021, no. 8, 6169--6183.
- Variation of stable birational types in positive characteristic
Épijournal de Géométrie Algébrique 3 (2019), Article Nr. 20.
- The construction problem for Hodge numbers modulo an integer, (with M. Paulsen)
Algebra & Number Theory 13 (2019), 2427--2434.
- Chern numbers of some uniruled threefolds, (with L. Tasin)
in: E. Colombo et al. (eds), Birational Geometry and Moduli Spaces,
Springer INdAM Series 39, Springer 2020, 189--200.
- On deformations of quintic and septic hypersurfaces, (with J.C. Ottem)
Journal de Mathématiques Pures et Appliquée 135 (2020), 140--158.
- Stably irrational hypersurfaces of small slopes
Journal of the AMS 32 (2019), 1171--1199.
- The Kuga-Satake construction under degeneration, (with A. Soldatenkov)
Journal of the Institute of Mathematics of Jussieu 19 (2020), 2165--2182.
- Quadric surface bundles and stable rationality
Algebra & Number Theory 12 (2018), 479--490.
- On the rationality problem for quadric bundles
Duke Math. Journal 168 (2019), 187--223.
- On the number and boundedness of log minimal models of general type,
(with D. Martinelli and L. Tasin)
Annales scientifiques de l'ÉNS 53 (2020), 1183--1210.
- Kähler structures on spin 6-manifolds, (with L. Tasin)
Mathematische Annalen 373 (2019), 397--419.
- Generic vanishing and minimal cohomology classes on abelian fivefolds,
(with S. Casalaina-Martin and M. Popa)
Journal of Algebraic Geometry 27 (2018), 553--581.
- Decomposable theta divisors and generic vanishing
International Mathematics Research Notices 2017, Issue 16, 4984--5009.
- Algebraic structures with unbounded Chern numbers, (with L. Tasin)
Journal of Topology 9 (2016), 849--860.
- Theta divisors with curve summands and the Schottky problem
Mathematische Annalen 365 (2016), 1017--1039.
- Multiplicative sub-Hodge structures of conjugate varieties
Forum of Mathematics, Sigma 2 (2014), e1, 37pp.
- On the construction problem for Hodge numbers
Geometry & Topology 19 (2015), 295--342.
- The Hodge ring of Kähler manifolds, (with D. Kotschick)
Compositio Math. 149 (2013), 637--657.
- Dualization invariance and a new complex elliptic genus
J. reine angew. Math. 692 (2014), 77--108.
Lebenslauf
Education
11/2015: PhD, University of Bonn (Advisor: D. Huybrechts)
2011-2012: Trinity College, Cambridge: Part III of Mathematical Tripos
2008-2011: Studies of Mathematics at LMU Munich: B.Sc. and M.Sc.
Academic Positions
since 03/2020: Professor (W3), Chair, Leibniz University Hannover
2017-2020: Professor (W2), LMU Munich
2015-2017: Assistant, University of Bonn
2012-2015: Doctoral student, Max-Planck-Institute Bonn
Honors
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Invited Sectional Lecture at ICM 2026 (Philadelphia, USA)
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ERC Starting Grant 2020
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Hausdorff-Memorial Prize, awarded for best PhD thesis in the academic year 2015/16 at University of Bonn
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Compositio Prize Finalist: joint paper with D. Kotschick was nominated among the three best papers that appeared in Compositio Mathematica in the period 2011-2013
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Bundeswettbewerb Mathematik 2007: National winner of federal math competition for highschool students in Germany