Lenny Ng

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 2023: Math 401, Math 790; Spring 2024: Math 612)

Travel schedule

Contact information

Curriculum vitae

Legendrian knot and link atlases

Legendrian knot gallery

Putnam solutions

About me

Duke undergraduate research opportunities in math for summer 2024: applications for PRUV are now open; applications for Math+ are expected to open in early January 2024. If you'd like to join the mailing list to be informed when Math+ applications are open, there's information on the Math+ web page. (November 2023)

Solutions to the 2022 Putnam competition are now available. (December 2022)

I was an organizer for Frontiers in Geometry and Topology, the 2022 graduate summer school and research conference in honor of Tom Mrowka. Here are the relevant web pages for the graduate summer school and the research conference. (May 2022)

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.