# Informal Friday Seminar

The informal Friday seminar is a space where members of our research group can explain interesting things to each other in a casual setting. This is an entirely optional event, so don't feel any obligation whatsoever to attend (unless of course you are speaking!) The rules of the seminar are the following:

- Any question/additional explanation from the audience is allowed.
- Ego out the window.
- Examples, examples, examples.

The seminar is intended to be conversational, so come ready to engage. After the seminar, all participants (and non-participants) are invited to join for soccer in Victoria Park and a drink at the Duck Inn. The formal details of the seminar are:

**When**: Fridays, 2:15-4:15ish**Where**: the seminar room on the 8th floor of Carslaw (830)

**Past News:**

In November, 2018 we spent some time preparing for Luca Migliorini's lecture series on the P=W conjecture at the MATRIX institute in Creswick, Victoria. We found this survey on the P=W conjecture helpful in our preparations, and as a group, we put together these lecture notes from the workshop.

**2019 Schedule:**

**Friday, February 8:**Will Donovan, Perverse schobers on mirror moduli spaces (**3pm**)**Friday, February 15**: SÃ¸ren Galatius, $E_\infty$-cells and general linear groups of finite fields (**1:30-3:30pm**)*Note the irregular time!***Friday, February 22:**Kevin Coulembier, Tannakian categories in positive characteristic (**3pm**)**Friday, March 1**: Anna Romanov, Representation theory of SL(2,R) (**3-5pm**)**Friday, March 8:**Anna Romanov, The local Langlands correspondence for SL(2,R) (**3-5pm**)**Friday, March 15:**James Parkinson, Hecke algebras with unequal parameters I: Cells**(3-5pm)****Friday, March 22:**James Parkinson, Hecke algebras with unequal parameters II: Plancherel Theorems**(3-5pm)****Friday, March 29:**Gwyn Bellamy, Symplectic singularities and their quantizations (**3-5pm**)**Friday, April 5**: Gwyn Bellamy, Symplectic singularities and their quantizations (**3-5pm**)**Friday, April 12**: Gwyn Bellamy, Symplectic singularities and their quantizations (**3-5pm**)**Friday, April 19**: Holiday, no seminar**Friday, April 26**: Joe Baine, Representations of SL_2(F_q) (**2:15-4:15pm**)**Friday, May 3**: Joe Baine, Representations of SL_2(F_q) (**2:15-4:15pm**)**Friday, May 10**: Ivan Losev, Modular representations of semisimple Lie algebras (**3-4 pm**)**Monday, May 13**: Ivan Losev, Modular representations of semisimple Lie algebras (**3-5 pm**)*Note the irregular day of the week!***Friday, May 17**: Gaston Burrull, The Bernstein presentation of the Hecke algebra (**2:15-4:15pm**)**Friday, May 24**: Leonardo Maltoni, Categorification of the loop presentation of the affine Hecke algebra for SL2 (**2:15-4:15pm**)**Friday, May 31**: Josh Ciappara, Tensor products of finite and infinite dimensional representations of semisimple Lie algebras (**2:15-4:15pm**)**Friday, June 7**: Josh Ciappara, TBA (**2:15-4:15pm**)**Friday, June 14**:**Friday, June 21**:

**2018 Schedule:**

**Friday, October 5**: Xun Xie, Boundedness of the a-function**Friday, October 12**: Xun Xie, Boundedness of the a-function, continued- (with supplementary
**3-4pm**lecture by Geordie on background on why the a-function is so interesting)

- (with supplementary
**Friday, October 19**: Anna Romanov, Unitary representations of real reductive groups: the abelian case**Friday, October 26**: Anna Romanov, Unitary representations of real reductive groups, continued**Friday, November 2**: Minhua Liu, The decomposition theorem**Friday, November 9**: Josh Ciappara, Perverse sheaves and the weak Lefshetz theorem**Friday, November 16**: Joel Gibson, Abelian Hodge theory (**3pm**) and Geordie Williamson, Mixed Hodge theory (**4pm**)**Friday, November 23**: Joel Gibson, Higgs bundles (**3pm**) and Anna Romanov, the Hitchin fibration and the Springer resolution (**4pm**)**Friday, November 30**: No seminar**Friday, December 7**: Joe Baine, counting points on character varieties (**3pm**) (*canceled, didn't meet quorum*)