electronic Computational Homotopy Theory (eCHT)

Online Research Community

The electronic Computational Homotopy Theory (eCHT) online research community sponsors a variety of activities related to research in pure mathematics, mostly in algebraic topology, homotopy theory, and related topics. The links in the sidebar will lead you to more detailed descriptions of our activities and information on how to participate. Please subscribe to our mailing list to be kept informed of all eCHT news and events.

The eCHT research community was sponsored by a Research Training Grant (RTG) from the National Science Foundation (NSF) in 2022-2026. It is also sponsored by the Zulip chat app. For more information, contact us at echtadmin@gmail.com.

Applied Algebraic Topology Research Network (AATRN)

Homotopy Type Theory Electronic Seminar Talks (HoTTEST)

Online Seminar on Undergraduate Mathematics Education (OLSUME)

Special thanks to Jesse Keyes for building this website. It was last updated in August 2026.