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)


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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











Solutions to the 2017 Putnam competition are now available.

DOmath, the Duke math department's collaborative summer research program for Duke undergraduates, will return in summer 2018. Here are links to information about DOmath and the online application from 2017 (the application for 2018 will be posted soon, with a deadline near the end of January 2018). Please feel free to email me if you are interested and have questions.

My office has changed to Physics 216 (just down the hall from my old office). The office phone number remains the same.

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.