Topology Festival image

Topology Festival

May 8–10, 2020

Important Announcements: COVID-19

Posted March 16, 12:42 p.m. — If you registered for the banquet and made payment, your payment will be refunded.

Posted March 13, 3:08 p.m. — With great regret, the organizers have decided to cancel the Topology Festival this year, due to travel restrictions and the suspension of university activities arising from Covid-19 concerns. Since we felt that a large part of the conference came from social participation, moving it "online" was not feasible. Instead, we will simply postpone until the same time next year. We hope that you will join us for the 2021 festival. Expect to hear more details about it next academic year.

Posted March 11, 11:17 a.m. — While plans for the upcoming Topology Festival are still continuing, Cornell is updating precautionary policies and restrictions in regards to COVID-19 on a daily basis. We will post any updates here and send an e-mail to all registered participants if any changes are made.

Key Dates

March 31 Deadline for applications for funding
April 7 Earliest deadline for group rates on hotel bookings
April 8 Tentative date of email notification of funding decisions
April 30 Conference registration closes

Plenary Speakers

Introductory Talks

Special Demonstration

Cliff Stoll (Acme Klein Bottles) and Lucas Clarke (Simon Fraser University): Mathematics and Hot Glass


Cornell University, among other national educational institutions, has become aware that conference speakers are being contacted either by e-mail or phone and are being asked to give out credit card information for lodging.  Please know that we will NOT be contacting anyone for any personal or credit card information via direct e-mail or phone.  If you have any questions regarding this, please contact any of the organizers or the event conference coordinator.


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

At this time, we can provide letters of invitation to scholars who wish to attend.


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.