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Wojciech J. Gajda

professor of mathematics

Mailing address:
Faculty of Mathematics and Computer Science
Adam Mickiewicz University
Umultowska 87, 61-614 Poznań, POLAND
Office: Collegium Mathematicum, B1-35
Phone: +48 (61) 829 5503
Fax: +48 (61) 829 5315
Email: gajda AT amu DOT edu DOT pl

Research interests:

arithmetic geometry, number theory, algebraic topology, algebraic K-theory

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Ulrich Derenthal, Leibniz Universität Hannover

04.07.2016, 12.15, B1-37

Title: Manin's conjecture for certain spherical threefolds

Abstract:

Manin's conjecture predicts the asymptotic behavior of the number of rational points of bounded height on Fano varieties. Spherical varieties admit a combinatorial description by Luna data and colored fans. In this talk, we discuss Manin's conjecture for some singular spherical threefolds. Its rational points are counted via universal torsors, which can be explicitly described using Brion's work on Cox rings of spherical varieties. This is joint work with Giuliano Gagliardi.