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 2019: Math 611)

Travel schedule

Contact information

Other professional information (CV, publication list)

Mathematical links

Legendrian knot and link atlases

Legendrian knot gallery

Putnam solutions

About me











I currently serve as the director of undergraduate research for the Duke mathematics department. Please see the following links for information about two of our summer research programs for Duke undergraduates: PRUV, DOmath. The 2019 DOmath program has recently concluded; please stay tuned at that link for project reports and other information. (July 2019)

Solutions to the 2018 Putnam competition are now available. (December 2018)

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.