March 19, 2018
4:00PM - 5:00PM
TBD
Add to Calendar
2018-03-19 16:00:00
2018-03-19 17:00:00
Commutative Algebra Seminar (First Talk) -- Hans Schoutens
Speaker: Hans Schoutens, CUNY
Title: Tight closure from the point-of-view of difference closure
Abstract: Tight closure is a very elegant yet powerful theory developed by Hochster and Huneke in the 90s. It exploits good properties of the Frobenius (=the $p$-th power map in positive characteristic) to prove rather quickly some deep theorems in algebra and algebraic geometry. Since there is no apparent Frobenius in characteristic zero, the theory is much more cumbersome there, unless one takes the point of view of difference closures (and some 'mild’ use of ultraproducts). Rather than giving all the details, I will give a brief survey—Tight Closure 101—and then give some nice applications.
TBD
OSU ASC Drupal 8
ascwebservices@osu.edu
America/New_York
public
Date Range
Add to Calendar
2018-03-19 16:00:00
2018-03-19 17:00:00
Commutative Algebra Seminar (First Talk) -- Hans Schoutens
Speaker: Hans Schoutens, CUNY
Title: Tight closure from the point-of-view of difference closure
Abstract: Tight closure is a very elegant yet powerful theory developed by Hochster and Huneke in the 90s. It exploits good properties of the Frobenius (=the $p$-th power map in positive characteristic) to prove rather quickly some deep theorems in algebra and algebraic geometry. Since there is no apparent Frobenius in characteristic zero, the theory is much more cumbersome there, unless one takes the point of view of difference closures (and some 'mild’ use of ultraproducts). Rather than giving all the details, I will give a brief survey—Tight Closure 101—and then give some nice applications.
TBD
Department of Mathematics
math@osu.edu
America/New_York
public
Speaker: Hans Schoutens, CUNY
Title: Tight closure from the point-of-view of difference closure
Abstract: Tight closure is a very elegant yet powerful theory developed by Hochster and Huneke in the 90s. It exploits good properties of the Frobenius (=the $p$-th power map in positive characteristic) to prove rather quickly some deep theorems in algebra and algebraic geometry. Since there is no apparent Frobenius in characteristic zero, the theory is much more cumbersome there, unless one takes the point of view of difference closures (and some 'mild’ use of ultraproducts). Rather than giving all the details, I will give a brief survey—Tight Closure 101—and then give some nice applications.
