UCalgary Peripatetic Seminar: Martina Rovelli

  • Date: 02/10/2022
  • Time: 09:00
Lecturer(s):
Martina Rovelli, University of Massachusetts Amherst
Location: 

Online

Topic: 

An (∞,2)-categorical pasting theorem

Description: 

Abstract: Power’s 2-categorical pasting theorem, asserting that any pasting diagram in a 2-category has a unique composite, is at the basis of the 2-categorical graphical calculus, which is used extensively to develop the theory of 2-categories. In this talk we discuss an (∞,2)-categorical analog of the pasting theorem, asserting that the space of composites of any pasting diagram in an (∞,2)-category is contractible. This result, which is joint with Hackney—Ozornova—Riehl, rediscovers independent work by Columbus.

Other Information: 

Time: 9–10am PST or 10–11am MDT
Location: Zoom (email sacha.ikonicoff at ucalgary.ca for more info)

https://logic.ucalgary.ca/