Lenny Ng Eads Family Professor Department of Mathematics Duke University Office: Physics 216 Phone: 919-660-6972 Email: my surname at math dot duke dot edu (further contact information here) Refresh for another random image; click image for gallery.

Papers and preprints Teaching (Fall 2017: Math 411, Math 431) Travel schedule Contact information Other professional information (CV, publication list) Mathematical links Legendrian knot and link atlases Legendrian knot gallery Putnam solutions About me My office has changed to Physics 216 (just down the hall from my old office). The office phone number remains the same. The Duke mathematics department is starting DOmath, a new collaborative summer research program for Duke undergraduates, in summer 2017. Here are links to information about DOmath and the online application (the deadline was February 20, 2017). Please feel free to email me if you are interested and have questions. Solutions to the 2016 Putnam competition are now available. The joint topology seminar has returned! Here is the web page for the seminar: Triangle Topology Seminar. I am an editor for the journal Quantum Topology. Please send me a message if you are interested in submitting an article, especially in symplectic and contact topology.