IHP 2022 - Activities

Learning Seminars

These learning seminars are organized as a part of the IHP thematic trimester "Groups acting on fractals".
Our goal of these seminars is to foster discussion between junior participants through regular weekly meetings.
Resources and references from each seminar will be uploaded to this site.
The below schedule is coarsely equivalent to the one found on the IHP website and included for ease of reference.

Speaker Schedule

  • Pseudo-Anosovs via geodesic laminations
    Presenter: Michael Kopreski

  • Combining Kleinian Groups (detailed notes)
    Presenter: Sami Douba

  • Fary Milnor in CAT(0) spaces (detailed notes)
    Presenter: Shaked Bader

  • Square tiled surfaces
    Presenter: Paige Helms

  • Finite rigidity and automorphisms of the non separating curve complex
    Presenter: Rodrigo De Pool

  • Boundary theory and non-positive curvature
    Presenter: Corentin Lebars

  • The geometry of contracting elements
    Presenter: Xabier Legaspi

Time and Location

  • 20 and 22 April
    Room: Hermite (1) Darboux (2)

  • 03 and 04 May
    Room: Darboux(1) Hermite (2)

  • 10 and 11 May
    Room: Hermite

  • 18 and 20 May
    Room: Classroom 01 (1st floor)

  • 07 June
    Room: Darboux

  • 10 and 14 June
    Room: Darboux

  • 15 June
    Room: Darboux

Apéretifs Mathématiques

Each speaker will have one blackboard or 15 minutes (whichever they use first) to share with us an idea they've been contemplating during the first month of the trimester. Wine and snacks will be served.

Talks should be informal, and can run the range of subjects: expositing a known result that delights you, introducing an open problem you're grappling with, sharing the joys of your latest progress, inviting us to the mysteries of a particular example, alerting us to a new paper you're excited about.
Part 2: IHP 2nd floor (16:00 - 18:30) Friday 17 June

Part 1: IHP 2nd floor (16:00 - 18:00) Friday 13 May

Minicourses

The schedule of minicourses is kept up to date on the IHP main schedule (here) . We summarize specific information here.

Minicourse 1: Mladen Bestvina
Projection Complexes and Applications to MCG (19Apr@2pm, 20Apr@2pm, 22Apr@10am)

Minicourse 2: Tianyi Zheng
Random walks on Grigorchuk groups and growth estimates (10May@2pm, 11May@2pm, 13May@10am)

Minicourse 3: Volodia Nekrashevych
Hyperbolic groupoids (20May@10am, 23May@2pm, 24May@10am)

Minicourse 4: Denis Osin
Applications of descriptive set theory in geometric group theory (24May@2pm, 25May@2pm)

Minicourse 5: John Mackay
Conformal dimension and hyperbolic groups (08June@2pm, 14June@2pm, 15June@2pm)