Office Location: | 231 Physics |

Office Phone: | (919) 660-6972 |

Email Address: | |

Web Page: | http://www.math.duke.edu/~ng/ |

**Teaching (Spring 2015):**

- MATH 633.01,
*COMPLEX ANALYSIS*Synopsis- Physics 205, WF 01:25 PM-02:40 PM

- MATH 790-90.06,
*MINICOURSE IN ADVANCED TOPICS*Synopsis- Physics 227, WF 10:05 AM-11:10 AM

**Office Hours:**- Spring 2015:

Wednesdays 2:40-4:00

Thursdays 1:00-2:30

and by appointment.

**Education:**PhD MIT 2001 AB Harvard University 1996

**Specialties:**-
Geometry

Topology

**Research Interests:***Symplectic geometry, Low dimensional topology, Contact geometry, Knot theory, Holomorphic curves*

**Keywords:**Symplectic geometry • Low dimensional topology • Contact geometry • Knot theory • Holomorphic curves

**Current Ph.D. Students**

**Postdocs Mentored**- Christopher Cornwell (2011 - present)
- Daniel Rutherford (2008 - 2011)

**Undergraduate Research Supervised**- Alexandru Milu (May 12, 2014 - June 27, 2014)
- Wutichai Chongchitmate (2009 - 2010)
- Tirasan Khandhawit (2007 - 2008)

**Recent Publications**- C. Cornwell, L. Ng, and S. Sivek,
*Obstructions to Lagrangian concordance*(Submitted, 2014) [arXiv:1411.1364] - L. Ng,
*A topological introduction to knot contact homology*, in Contact and Symplectic Topology, edited by F. Bourgeois, V. Colin, and A. Stipsicz (2014), ISBN 978-3-319-02035-8 [arXiv:1210.4803], [doi] - M. Aganagic, T. Ekholm, L. Ng, and C. Vafa,
*Topological strings, D-model, and knot contact homology*, Advances in Theoretical and Mathematical Physics, vol. 18 no. 4 (2014), pp. 827-956 [arXiv:1304.5778], [doi] - T. Ekholm and L. Ng,
*Legendrian contact homology in the boundary of a subcritical Weinstein 4-manifold*, Journal of Differential Geometry (Accepted, 2013) [arXiv:1307.8436] - L. Ng and D. Rutherford,
*Satellites of Legendrian knots and representations of the Chekanov-Eliashberg algebra*, Algebraic & Geometric Topology, vol. 13 no. 5 (2013), pp. 3047–3097 [arXiv:1206.2259], [doi]

- C. Cornwell, L. Ng, and S. Sivek,

**Recent Grant Support***CAREER: Symplectic Field Theory and Low-Dimensional Topology*, National Science Foundation, 0846346, 2009/09-2014/08.

**Conferences Organized**- 27th Annual Geometry Festival, Organizer, April 27, 2012 - April 29, 2012
- Organizer, workshop "Cyclic homology and symplectic topology", November, 2009
- Organizer, workshop "Algebraic structures in the theory of holomorphic curves", November, 2009