A venue for invited and local speakers to present their research on topics surrounding algebraic geometry and number theory, broadly conceived. All meetings start at 14:10 sharp and end at 15:10. Meetings are held in the subterranean room -101. We expect to broadcast most meetings over Zoom at the URL https://us02web.zoom.us/j/85116542425?pwd=MzVDRmZJUVh2NXlObFVkM1N0MCt3Zz09
This Week
Michael Barash (Ben Gurion University)
Irreducible components of Severi varieties on toric surfaces
Irreducible components of Severi varieties on toric surfaces
In this talk, I will discuss the irreducibility problem of Severi varieties on toric surfaces. The classical Severi varieties were introduced by Severi almost 100 years ago in the context of Severi’s attempt to provide an algebraic treatment of the irreducibility problem of the moduli spaces of curves. Although, the irreducibility of the moduli spaces was achieved algebraically by Deligne and Mumford in 1969 using completely different techniques, Severi varieties remained in the focus of study of many algebraic geometers including Harris, Fulton, Zariski and others.
In this talk I will present the main result of my M.Sc. Thesis providing a complete description of the irreducible components of the genus-one Severi varieties on toric surfaces.
This work was done under the supervision of Professor Ilya Tyomkin.
2023–24–B meetings
Upcoming Meetings
Date |
Title |
Speaker |
Abstract |
---|---|---|---|
Jun 26 | Irreducible components of Severi varieties on toric surfacesOnline | Michael Barash (Ben Gurion University) |
Past Meetings
Date |
Title |
Speaker |
Abstract |
---|---|---|---|
May 8 | x-y duality in topological recursion, Hurwitz numbers and integrability | Boris Bychkov (University of Haifa) | |
May 22 | Fundamental Groups of Projective Varieties are Finitely Presented | Mark Shusterman (Weizmann) | |
May 29 | Supersingular elliptic curves, quaternion algebras and some applications to cryptography | Eyal Goren (McGill University) | |
Jun 5 | Adic Completion, Derived Completion, Prisms, and Weak Proregularity | Amnon Yekutieli (Ben Gurion University) | |
Jun 19, 13:10–14:10 | TBA | Francesco Maria Saettone (Ben Gurion University) |
Seminar run by Dr. Ishai Dan-Cohen and Prof. Amnon Besser