Department of Mathematics

Seminar / Workshop

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Degenerations of generalized Kummer varieties

11 February 2026, start time 14:30 - 15:30
PovoZero, Via Sommarive 14, Povo (Trento)
Seminar Room "1"
Free
Organizer: Department of Mathematics
Target audience: UniTrento PhD students, Research Fellows, Researchers, Postdoctoral Researcher, UniTrento faculty, UniTrento students
Referent: F. Fallucca, R. Pignatelli, E. Postinghel, L. Solá Conde
Contacts: 
Staff of the Department of Mathematics
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globo con formule matematiche

Geometry Seminars Department of Mathematics

Speaker: Lars H. Halle (Università di Bologna)

Let A be an abelian surface. The summation of n points on A induces a map from the n-th
Hilbert scheme Hilbn(A), to A. The (n − 1)-th generalized Kummer variety is by definition
the fiber of this map over the identity point of A. It is a smooth projective variety of dimension
2(n − 1), and forms one of the fundamental types of Hyperkähler varieties. In this talk, I
will present a method for constructing explicit degenerations of generalized Kummer varieties,
for any n, when the underlying abelian surface admits a type 2 Kulikov degeneration. I will
moreover discuss some features of these degenerations. This is joint work in progress with K.
Hulek and Z. Zhang.