[Alta-Logic] Fwd: ANTS at 1:30 pm tomorrow

[Kristine Bauer]

Hello everyone,

This talk int he Algebra & Number Theory session tomorrow looks like it may be of interest to the Peripatetic group.

Cheers,
Kristine

Begin forwarded message:

From: Thomas Bitoun <thomas.bitoun at ucalgary.ca<mailto:thomas.bitoun at ucalgary.ca>>
Subject: ANTS at 1:30 pm tomorrow
Date: November 23, 2020 at 10:26:51 AM MST
To: faculty Math <faculty at math.ucalgary.ca<mailto:faculty at math.ucalgary.ca>>, grad Math <grad at math.ucalgary.ca<mailto:grad at math.ucalgary.ca>>, postdoc Math <postdoc at math.ucalgary.ca<mailto:postdoc at math.ucalgary.ca>>, "number-theory-l at mailman.ucalgary.ca<mailto:number-theory-l at mailman.ucalgary.ca>" <number-theory-l at mailman.ucalgary.ca<mailto:number-theory-l at mailman.ucalgary.ca>>
Cc: "carlm at ucr.edu<mailto:carlm at ucr.edu>" <carlm at ucr.edu<mailto:carlm at ucr.edu>>

Hi everyone,

Tomorrow at 1:30 pm Calgary time, Carl Mautner (UC Riverside) will give a talk at our seminar, via zoom. Here are his title and abstract:


Category O for oriented matroids

(joint with Ethan Kowalenko) Category O of a complex semi-simple Lie algebra has rich structure and is connected to the algebraic geometry of the cotangent bundle of the associated flag variety. Braden-Licata-Proudfoot-Webster discovered that similarly rich representation theory, which they named hypertoric category O, can be extracted from the geometry of hypertoric (a.k.a. toric hyperkahler) varieties. Motivated by this discovery, they and others introduced and studied other `geometric’ categories O associated to more general symplectic resolutions. In the current work, we generalize their notion of hypertoric category O in a different direction, to the purely combinatorial setting of oriented matroids. We are motivated in part by earlier joint work with Braden on matroidal Schur algebras.


The seminar website is https://sites.google.com/view/calgaryants2020-2021.

Here are the Zoom meeting id and passcode:

Join Zoom Meeting
https://ucalgary.zoom.us/j/94286025219

Meeting ID: 942 8602 5219
Passcode: 457641

Looking forward to see you there!

All the best,
Thomas

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