Introduction to ∞-Categories

Reading Group

Talk 1: General Motivation & Quasicategories

09/10/24

Speaker: Lucy Spouncer

Notes by: Isky Mathews 

Resources: Talk notes

Summary: Higher categories are motivated by many areas of maths, from axiomatisation of QFTs to homological algebra or the category of spectra, and they exploit the combinatoriality of the category of simplices (Δ) to manage the vast amounts of homotopy coherence data that higher categories require. This talk introduces some of the motivation, intuition and key concepts (simplicial sets, horns, and the horn filling condition) needed to define (∞, 1)-categories as in the quasicategory model.

Talk 2: Basics of Quasicategories

15/10/24

Speaker: Tudor-Ioan Caba

Notes by: Isky Mathews

Resources: Talk Notes

Summary: TBD

Talk 3: Model Categories

22/10/24 – 12/12/24

Speaker: Isky Mathews

Notes by: Isky Mathews

Resources: Talk Notes

Summary: TBD

Talk 4: Colimits in Quasicategories

22/10/24 – 12/12/24

Speaker: Lucy Spouncer

Notes by: Isky Mathews

Resources: Talk Notes

Summary: TBD

Talks 3: Model categories

22/10/24 – 12/12/24

Speaker: Isky Mathews

Notes by: Isky Mathews

Resources: Talk Notes

Summary: TBD