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 (Spring 2019: Math 112L, Math 612) Travel schedule Contact information Other professional information (CV, publication list) Mathematical links Legendrian knot and link atlases Legendrian knot gallery Putnam solutions About me Applications for the 2019 program for DOmath, the Duke math department's collaborative summer research program for Duke undergraduates, are now open! Here is information about DOmath 2019 and the online application. Solutions to the 2018 Putnam competition are now available. I help to organize the Triangle Topology Seminar, a joint seminar between Duke, NCSU, and UNC. Here is a link to upcoming seminars. 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.