image credit K. Hayden, S. Kim, M. Miller, JH. Park, and I. Sundberg arXiv:2205:15283

Topology Festival

5–7 May 2023

You are cordially invited to the 58th annual Cornell Topology Festival, which will be held in Ithaca, Friday May 5 – Sunday May 7, 2023.

Registration and financial support

We ask all participants to register here:

Registration link →

Registration includes an option to apply for financial support towards travel and accommodation expenses. Registration will close on 19 April. However, to be considered for financial support, you must register by 20 March. Decisions on financial support will be made by 28 March. Early-career mathematicians and those from underrepresented groups are especially encouraged to apply.

Travel to Ithaca

COVID-19 Policies

Cornell has COVID-related policies with which visitors to campus and events are required to comply. These are being updated periodically.

Scam Warning!

Many conferences have been targeted by scammers who claim to be booking accommodation but in reality are seeking to obtain credit card or banking information fraudulently.

Festival Poster


Cornell University is committed to providing a safe, inclusive, and respectful learning, living, and working environment. To this end, Cornell will not tolerate sexual and related misconduct. Through Cornell University Policy 6.4, and the applicable procedures, the university provides means to address bias, discrimination, harassment, and sexual and related misconduct, including gender-based harassment, sexual harassment, sexual assault, domestic and dating violence, stalking, and sexual exploitation. Reports of bias, discrimination, and harassment can be made online at or by contacting the Office of the University Title IX Coordinator at


The Topology Festival gratefully acknowledges the continuous support of the National Science Foundation since the Festival’s inception. Special thanks to Acme Klein Bottle, purveyors of “the finest closed, non-orientable, boundary-free manifolds sold anywhere in our three spatial dimensions,” for donating a prize every year for many years. We thank K. Hayden, S. Kim, M. Miller, JH. Park, and I. Sundberg for this year's logo, which is from their paper Seifert surfaces in the 4-ball, arXiv:2205:15283.