\(\def\NN{\mathbb{N}}\) \(\def\ZZ{\mathbb{Z}}\) \(\def\QQ{\mathbb{Q}}\) \(\def\RR{\mathbb{R}}\) \(\def\CC{\mathbb{C}}\)

# Computational sessions at the CRM «Algebraic and Geometric Combinatorics of Reflection Groups» school and workshop¶

This is part of a series of Computational sessions at the CRM thematic semester: Algebra and Words in Combinatorics.

## Session 1 (Monday 4-6pm)¶

- Joint exploration of reflection group features available in SageMath (see: Demo: reflection groups (draft))
- Help desk, work in small groups on computational exercises or personal problems.

## Session 2 (Tuesday 4-6pm)¶

- Software installation;
- Joint exploration of Sage features
- (see Symmetric functions, Posets related to coxeter groups);

- Help desk, work in small groups.

## Session 3 (Wednesday 4-6pm)¶

- Help desk, work in small groups.

## Session 4 (Thursday 4-6pm)¶

- Demo by Cédric of computing with Cherednik algebras on Magma
- Demo by Vic + N. illustrating Vic’s course (see Computing Molien-type sums for reflection groups);
- Pen and paper exercise sessions by Cédric, Nathan, Vic:
- Vic’s exercise sheet;

- Computational exercises.

## Session 5 (Friday 4-6pm)¶

- Help desk, work in small groups.