Online registration is closed for this event. If available, tickets on the day of the event may incur an additional charge.

Mirror Mirror on the Wall: the story of reflection groups and fractal sphere-packings

Tuesday, August 31 at 8:00 pm ET (New York)


Join Alex Kontorovich, MoMath’s Distinguished Visiting Professor for the Public Dissemination of Mathematics, in his final talk of the season.  Discover how geometry and arithmetic can interact in unexpected ways to form fractal sphere-packings from reflections in curved mirrors.

This is a live-streamed broadcast of an in-person event.  Occasional video recordings are made available for a fee at

August 31, 2021 8:00 pm   through   9:30 pm
National Museum of Mathematics
11 E. 26th St.
New York, NY 10010
United States
Phone: 212-542-0566

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