Charles Rezk: Free colimit-completion and global presheaves (Topology seminar)
- Event Type
- Seminar/Symposium
- Sponsor
- Vesna Stojanoska
- Location
- Altgeld Hall 243
- Date
- Jan 31, 2023 11:00 am
- Speaker
- Charles Rezk
- Views
- 31
- Originating Calendar
- Topology Seminar
Given an infinity category, you can enlarge it by “freely” adjoining colimits indexed by any chosen class of infinity-categories. “Freely” indicates that the construction is characterized by a universal property. In this talk I discuss some elementary but apparently not well-known (at least in this generality) properties of free colimit-completion. Then I’ll put these ideas in a wider context, by introducing a notion of “global presheaves”.