Discrete and combinatorial homotopy theory
March 13 to March 17, 2023
at the
American Institute of Mathematics,
San Jose, California
organized by
Helene Barcelo,
Antonio Rieser,
and Volkmar Welker
Original Announcement
This workshop will be devoted to homotopy theories developed for the study of discrete and combinatorial objects. Many different models of discrete homotopy have emerged in the past 2030 years, developed largely in isolation from one another. In this workshop, we will study different perspectives on discrete homotopy and explore their connections and differences. Among our goals is to identify important applications, particularly to combinatorics, metric geometry, and geometric group theory. We will also investigate how ideas from abstract homotopy theory (model categories, simplicial and cubical homotopy, infinity categories, etc.) may be used to extend and consolidate the theories.
The main topics of this workshop are:

Atheory of graphs and simplicial complexes

Homotopy of digraphs

Digital homotopy

Discrete homotopy of metric spaces

Homotopy theory in topological categories

Applications of abstract homotopy theory to discrete homotopy

Applications of discrete homotopy to combinatorics, metric geometry, geometric group theory, and other areas.
Material from the workshop
A list of participants.
The workshop schedule.
A report on the workshop activities.