SMS scnews item created by Tom Goertzen at Mon 2 Mar 2026 1138
Type: Seminar
Distribution: World
Expiry: 1 Aug 2026
Calendar1: 4 Mar 2026 1000-1200
CalLoc1: SMRI Seminar Room (Macleay Building A12 Room 301)
CalTitle1: Canonical Basis Learning Seminar
Calendar2: 11 Mar 2026 1000-1200
CalLoc2: SMRI Seminar Room (Macleay Building A12 Room 301)
CalTitle2: Canonical Basis Learning Seminar
Calendar3: 18 Mar 2026 1000-1200
CalLoc3: SMRI Seminar Room (Macleay Building A12 Room 301)
Calendar4: 25 Mar 2026 1000-1200
CalLoc4: SMRI Seminar Room (Macleay Building A12 Room 301)
Calendar5: 1 Apr 2026 1000-1200
CalLoc5: SMRI Seminar Room (Macleay Building A12 Room 301)
Calendar6: 15 Apr 2026 1000-1200
CalLoc6: SMRI Seminar Room (Macleay Building A12 Room 301)
Calendar7: 22 Apr 2026 1000-1200
CalLoc7: SMRI Seminar Room (Macleay Building A12 Room 301)
Auth: goertzen@10.136.59.94 (tgoe0324) in SMS-SAML

Canonical Basis Learning Seminar -- Canonical Basis Learning Seminar

The goal of this seminar is to study the answers to the following questions about
irreducible representations of semisimple Lie algebras and related structures: 

 How can we compute their characters? 

 How can we compute tensor product decompositions? 

 What are "canonical bases" for these modules? 

The canonical basis (Lusztig) or crystal basis (Kashiwara), a powerful tool introduced
in the early 1990s, provides a model to answer these questions.  

First, we will learn about prototypical constructions that serve as motivation.  Then,
we will study the construction and properties of these modern bases, beginning with
Lusztig's approach and concluding with Kashiwara's approach.  

Connor Simpson will give a brief overview of the seminar in the first lecture, after
which Tom Goertzen will teach us about the Kazhdan-Lusztig basis.  The first talk of the
seminar will take place on March 4th from 10-12 in the SMRI Seminar Room (Macleay
Building A12, Room 301).  

Talks will be given by willing participants and/or experts in the field.  There will
also be an exercise session on the same day as the lectures.  Everyone is welcome.
Please share this with potential participants.  

Where: SMRI Seminar Room (Macleay Building, Room A12-301) 

When: Wednesdays, 10-12 (lecture); Wednesdays, 13-14 (exercise session) 

Organized by Tom Goertzen, Tao Qin, and Connor Simpson.  For more details, visit the
website: https://sites.google.com/view/canonicalbases/start?authuser=1.  

Contact the organizers with any questions or to join the mailing list.