Lenhard L. Ng Mathematics Department Duke University, Box 90320 Durham, NC 27708-0320 ngATmathDOTdukeDOTedu (further contact information here)

Papers and preprints
Other professional information (CV, research statement, etc.)
Teaching (Spring 2009: Math 105; Fall 2008: Math 262, Math 378)
About me
Contact information
Mathematical links
Diversions

Solutions to the 2008 Putnam are now available.

Some recent and future conferences and workshops in which I have participated or plan to participate:

• Symplectic and Contact Geometry and Topology, MSRI, 2009-2010
• Algebraic Structures in the Theory of Holomorphic Curves (co-organizer), MSRI, November 2009
• Symplectic and Contact Geometry and Topology Summer Graduate Workshop, MSRI, August 2009
• Georgia International Topology Conference, University of Georgia, May 2009
• AMS Southeastern Sectional Meeting (co-organizer), Raleigh, April 2009
• Interactions of geometry and topology in dimensions 3 and 4, Banff International Research Station, March 2009
• Illinois/Indiana Symplectic Geometry Conference, UIUC, March 2009
• Joint Mathematics Meetings, Washington, DC, January 2009
• Math Institutes Modern Mathematics Workshop, SACNAS national conference, Salt Lake City, October 2008
• Legendrian and transverse knots, AIM, September 2008
• Holomorphic curves: algebraic structures and geometric application, Stanford University, August 2008
• Low Dimensional Topology, MSRI, August 2008
• Gökova Geometry/Topology Conference, Gökova, May 2008
• Geometry Festival, Duke University, April 2008
• Knots in Washington XXVI, George Washington University, April 2008

About the graphic: The image above, rendered using Mathematica, depicts the plane field in three-dimensional space induced by the standard radially symmetric contact form dz + x dy – y dx. In the diagram, the z axis is in the vertical direction.

Last modified: 17 November 2008