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 2020: Math 790; Spring 2021: Math 633)

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 am teaching an online minicourse on Lagrangian intersection Floer theory during the second third of the Fall 2020 semester, starting on September 16. (August 2020)

I am co-organizing a virtual seminar, Trends in Low-Dimensional Topology, intended especially for early-career researchers in topology. The parent page Virtual Low-Dimensional Topology has a great collection of links to resources in topology and a calendar of online seminars in topology and symplectic geometry. (April 2020)

We are happy to confirm that the 2020 programs for DOmath and PRUV will both be held. Both programs will be conducted entirely virtually, in accordance with current Duke policy about on-campus summer programs. (April 2020)

Solutions to the 2019 Putnam competition are now available. (December 2019)

I currently serve as the Director of Undergraduate Research and Prizes for the Duke mathematics department. Please see the following links for information about two of our summer research programs for Duke undergraduates: PRUV, DOmath. (December 2019)

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.