The Spring 2018 edition of the Western Algebraic Geometry Symposium (WAGS) is the weekend of 17–18 March 2018 at San Francisco State University. Details are now on the conference website.
Linda Chen (Swarthmore)
José González (UC Riverside)
Antonella Grassi (Penn)
Alina Marian (Northeastern)
Jose Israel Rodriguez (Chicago)
Karen Smith (Michigan)
Richard Thomas (Imperial)
Photo: Tiger James looks to the new year.
Every year, the Distinguished Lecture Series (DLS) brings two to four eminent mathematicians to UCLA for a week or more to give a lecture series on their field, and to meet with faculty and graduate students.
C. David Levermore
I’ll be speaking (on rationality) at the AMS Fall Sectional Meeting at Riverside. Other speakers in the algebraic geometry session are Aravind Asok, Emily Clader, Omprokash Das, Humberto Diaz, Matthias Flach, Martin Gallauer, James McKernan, Wenhao Ou, Dustin Ross, and Alexander Soibelman. The session is organized by Humberto Diaz, Jose Gonzalez, and Ziv Ran.
The invited addresses are by Paul Balmer, Pavel Etingof, and Monica Vazirani.
Photo: NO YOU CAN’T HAVE MY LEAVES STOP ASKING, from reddit.
I’ve posted a new paper on the arXiv. Most of the results premiered at Oberwolfach, but since then I’ve added an interesting new example inspired by related work of Takehiko Yasuda, whom I met there. (Oberwolfach at work!)
The paper shows that the Kodaira vanishing theorem can fail on smooth Fano varieties of any characteristic p > 0. Taking cones over some of these varieties, we give the first examples of terminal singularities which are not Cohen-Macaulay. By a different method, we construct a terminal singularity of dimension 3 (the lowest possible) in characteristic 2 which is not Cohen-Macaulay.
Image: Palmerston, Foreign Office cat, sneaks up on cheese; from his DiploMog twitter feed
WAGS returns to UCLA.
The Fall 2017 edition of the Western Algebraic Geometry Symposium (WAGS) will take place the weekend of 14–15 October 2017 at IPAM on the UCLA campus, hosted by the UCLA Mathematics Department. Details are now on the conference website.
If you plan to attend but haven’t yet registered, please register. It’s free, and knowing who’s coming will allow us to ensure that:
- We have enough space.
- We have enough coffee.
- We have enough food.
- We have a name tag ready for you, so that the conference is successful in helping you meet fellow mathematicians and helping other mathematicians meet you.
- We can help our funder to demonstrate — with evidence — that they’re supporting a thriving enterprise.
Send questions to email@example.com. [UPDATE: I previously gave the wrong email address (starting fall17).]
Photo of the Powell Cat from the Daily Bruin. More about the Powell Cat on twitter.
My paper about the Tate conjecture for Bull. AMS is now available to view.
In it I survey the history of the Tate conjecture on algebraic cycles. The conjecture is closely intertwined with other big problems in arithmetic and algebraic geometry, including the Hodge and Birch–Swinnerton-Dyer conjectures. I conclude by discussing the recent proof of the Tate conjecture for K3 surfaces over finite fields.
After returning the proofs to the AMS, it occurred to me that it could be helpful to readers if I recommended some available related videos. I was too slow for the AMS’s speedy production, however, so I make the recommendations here.
F. Charles. K3 surfaces over finite fields: insights from complex geometry (2015).
K. Madapusi Pera. Regular integral models for orthogonal Shimura varieties and the Tate conjecture for K3 surfaces in finite characteristic (2012).
D. Maulik. Finiteness of K3 surfaces and the Tate conjecture (2012).
Photo is from foldedspace.org.
The March for Science will be on Earth Day, Saturday, April 22, 2017, in 605 cities across the U.S. and beyond. Come out and march for truth against lies! Check out the web site for details of the march in your city. I’ll be marching in Houston.