Prof. Dr. Stefan Schreieder
30167 Hannover
Projects
ERC Starting Grant: RationAlgic
Duration: 01.04.2021--31.03.2027
Website with further information: here
Publications
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On the rationality problem for hypersurfaces, (with J. Lange)
Preprint 2024, arXiv:2409.12834 -
Remarks on Milnor K-theory and Tate's conjecture for divisors,
Preprint 2024, arXiv:2406.18706 -
Cycle conjectures and birational invariants over finite fields, (with S. Balkan)
Preprint 2024, arXiv:2406.14438 -
Truncated pushforwards and refined unramified cohomology, (with Th. Alexandrou)
arXiv:2406.07092, to appear in Advances in Mathematics -
Curves on powers of hyperelliptic Jacobians, (with O. de Gaay Fortman)
Preprint 2024, arXiv:2401.06577 -
Geometric retract rationality of norm varieties,
arXiv:2302.01598, to appear in Math. Research Letters -
Zeros of one-forms and homologically trivial fibrations, (with Ruijie Yang)
Michigan Math. Journal 1-10, (2023) DOI: 10.1307/mmj/20226317 -
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,
to appear in EPIGA (special volume in honour of Claire Voisin) -
The diagonal of quartic fivefolds, (with N. Pavic)
Algebraic Geometry 10 (6) (2023) 754-778 -
Infinite torsion in Griffiths groups,
J. Eur. Math. Soc. (2024), pp. 1-31, DOI10.4171/JEMS/1419
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Refined unramified cohomology of schemes,
Compositio Mathematica 159 (2023), 1466-1530.
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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, (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.
Short CV
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
ERC Starting Grant 2020
Hausdorff-Memorial Prize, awarded for best PhD thesis in the academic year 2015/16 at University of Bonn
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
Bundeswettbewerb Mathematik 2007: National winner of federal math competition for highschool students in Germany