Algebra and Algebraic Geometry Seminar Spring 2019

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The seminar meets on Fridays at 2:25 pm in room B235.

Here is the schedule for the previous semester and for the next semester

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Spring 2019 Schedule

date speaker title host(s)
January 25 Daniel Smolkin (Utah) TBD Daniel
February 1 Juliette Bruce Asymptotic Syzgies for Products of Projective Spaces Local
February 8 Isabel Vogt (MIT) Low degree points on curves Wanlin and Juliette
February 15 Pavlo Pylyavskyy (U. Minn) TBD Paul Terwilliger
February 22 Michael Brown Chern-Weil theory for matrix factorizations Local
March 1 TBD TBD TBD
March 8 Jay Kopper (UIC) TBD Daniel
March 15 TBD TBD TBD
March 22 No Meeting Spring Break TBD
March 29 Chris Eur (UC Berkeley) TBD Daniel
April 5 TBD TBD TBD
April 12 TBD TBD TBD
April 19 Eloísa Grifo (Michigan) TBD TBD
April 26 TBD TBD TBD
May 3 TBD TBD TBD

Abstracts

Isabel Vogt

Title: Low degree points on curves

In this talk we will discuss an arithmetic analogue of the gonality of a curve over a number field: the smallest positive integer e such that the points of residue degree bounded by e are infinite.  By work of Faltings, Harris--Silverman and Abramovich--Harris, it is well-understood when this invariant is 1, 2, or 3; by work of Debarre--Fahlaoui these criteria do not generalize to e at least 4.  We will study this invariant using the auxiliary geometry of a surface containing the curve and devote particular attention to scenarios under which we can guarantee that this invariant is actually equal to the gonality . This is joint work with Geoffrey Smith.