Professor of Mathematics David Yuen was invited by Lake Forest alum and North Central College math professor Neil Nicholson ’02 to be the featured end-of-the-year speaker for the North Central Math Circle lecture series at North Central College, on April 29, 2014. Yuen’s talk, titled “Topology of a World,” was followed by a group math exercise led by Yuen.

The event was funded by a grant obtained by Nicholson from the Mathematics Association of America.