MATH Seminar: “Pencils of Curves on Algebraic Surfaces with Reducible Fibers”, Anatoly Libgober (University of Illinois Chicago), 3:40PM October 23, 2026 (EN)

You are cordially invited to the ODTU-Bilkent Algebraic Geometry Seminar.

Speaker: Anatoly Libgober (University of Illinois Chicago)

“Pencils of curves on algebraic surfaces with reducible fibers”

Abstract: We describe constraints on the pencils of curves having sufficiently many reducible members, depending on the surface and the numerical classes of irreducible components. In the case of pencils of curves in linear systems with a small degree of the discriminant we give a classification of these pencils. This follows from the description of polarized simply connected surfaces with the degree of discriminant less than 13.
Paper: https://arxiv.org/abs/2608.06136

Date: 23 October 2026, Friday
Time: 15:40 (GMT+3)
Place: Zoom

This is an online seminar. To request the Zoom link, please send a message to [email protected]