(with D. Futer and J. Purcell), 2011.
PDF file , ArXiv (26 pages).
Slides from a related talk.

(with D. Futer and J. Purcell), 2011.
PDF file , ArXiv (155 pages).

(with C. Balm, S. Friedl and M. Powell),
Communications in Analysis and Geometry, to appear.
PDF file , ArXiv (15 pages).

J. Reine Angew. Math.(Crelle's Journal), DOI: 10.1515/CRELLE.2011.148.
PDF file, ArXiv

Quantum Topology, Vol 2, Issue 1, 71–96 (2011).
PDF file, ArXiv

(with D. Futer and J. Purcell), Proc. Amer. Math. Soc., 139(5),1879-1887(2011).
PDF file , ArXiv

(with D. Futer and J. Purcell), Int.Math. Res. Notices (old IMRP) ,
Vol. 2010, Issue 23, 4434-4497 (2010).
PDF file, ArXiv

(with O. Dasbach),
J. of Knot Theory and its Ramifications, Vol 19 (6), 763-764 (2010).
PDF file

(with O. Dasbach, D. Futer, X.-S. Lin and N. Stoltzfus),
J. of Knot Theory and its Ramifications, Vol. 19 (6), 765-782 (2010).
PDF file, ArXiv

(with D. Futer and J. Purcell), Geometriae Dedicata,
Vol 147, No. 1, 115-130 (2010).
PDF file, ArXiv

(with D. Futer and J. Purcell), Mathematical Research Letters 16, no 2, 233-253 (2009).
PDF file, ArXiv

J. of Knot Theory and its Ramifications, Vol. 18 (1), 33-39( 2009).
PDF file, ArXiv

(with O. Dasbach, D. Futer, X.-S. Lin and N. Stoltzfus),
Journal of Combinatorial Theory Ser. B , Vol. 98, Issue 2, 384-399(2008).
PDF file, ArXiv.

(with D. Futer and J. Purcell), Journal of Differential Geometry, Vol 78, no 3, 429-464 (2008).
PDF file, ArXiv

(With Xiao-Song Lin),
Transactions of the American Math. Soc., Vol. 360, 3249-3261 (2008).
Postcript file, PDF file

(With Xiao-Song Lin),
J. of Knot Theory and its Ramifications, Vol. 16 (10),1295-1329 ( 2007).
Special Volume in honor of L. Kauffman's 60th birthday ( Eds. J. Przytycki, S. Lampropoulou).
Postcript file, PDF file, ArXiv.

(With Xiao-Song Lin),  Pacific Journal of Math., Vol. 228, No. 2, 251-276 (2006).
Postcript file, PDF file.

Algebraic and Geometric Topology, Vol. 4 (48), 1111-1123(2004).
Postcript file

J. of Knot Theory and its Ramifications,; Vol. 13 (4),441-456 ( 2004).
Postcript file

(With Xiao-Song Lin),  Topology and Its Applications,   Vol. 138 (3), 207-217 (2004).
Postcript file

(With Nikos Askitas) ,Topology and Its Applications, Vol.126 (1-2), 63-81 (2002).
Postcript file

Topology and Its Applications, Vol. 101 (2), 107-119 (2000).
Postcript file

J. of Knot Theory and its Ramifications, Vol 7 (2), 173-185(1998).

(With Xiao-Song Lin) Mathematical Research Letters 5, 293-304(1998).
Postcript file

(With Xiao-Song Lin) Topology Vol 38 (1), 95-115 (1999).
Article

Topology Vol 37 (3), 673-707 (1998).
Article

Mathematical Research Letters 4, 341-347 (1997).

Ph.D Thesis, Columbia University, NY, (1995).

J. of Knot Theory and its Ramifications, Vol 3 (3), 431--432 (1994).

J. of Knot Theory and its Ramifications, Vol 2 (4), 431-451(1993).