Humboldt-Universität zu Berlin
Mathem.-Naturwissenschaftliche Fakultät
Institut für Mathematik

Forschungsseminar "Algebraische Geometrie"

Sommersemester 2019


Das Forschungsseminar findet mittwochs in der Zeit von 13:00 - 15:00 Uhr in der Rudower Chaussee 25, 12489 Berlin-Adlershof, Raum 1.114, statt.

Seminar: Algebraic Geometry an der FU


10.04.2019 Stefan Schreieder (LMU München)
Title: On deformations of quintic and septic hypersurfaces

Abstract: An old question of Mori asks whether in dimension at least three, any smooth specialization of a hypersurface of prime degree is again a hypersurface. A positive answer to this question has up till now only been known in degrees two and three. In this talk I explain how to settle the case of quintics (in arbitrary dimension) and septics in dimension three. Our results follow from numerical characterizations of the corresponding hypersurfaces. In the case of quintics, this extends famous work of Horikawa who analysed deformations of quintic surfaces. Joint work with J.C. Ottem.
 
17.04.2019 Tba.
Title: Tba.

Abstract: Tba.
 
24.04.2019 Tba.
Title: Tba.

Abstract: Tba.
 

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