Research Interests

• Integer Programming Theory and Applications
  - Group relaxations and polyhedra; Cutting planes
• Linear Programming & Semidefinite programming
  - Exact/Floating point LP solvers; semidefinite relaxations of IPs
• Software for Mathematical Programming

Research Software

• QSopt, a floating point LP solver.
• QSopt_ex, an exact LP solver (returns rational solutions). A "light/simplified" version can be found here.

Editorial Boards

• Associate Editor, INFORMS Journal on Computing
• Associate Editor, Mathematical Programming Computation
• Associate Editor, Operations Research Letters

Education

• Ph.D. (2001), Computational and Applied Mathematics, Rice University, Houston, Texas.
• M.S. (1995), Mathematics and Computer Applications, Indian Institute of Technology, Delhi, India.

Previous Work

• Princeton University, Princeton, New Jersey (April 2001 - June 2002).
• Wipro Systems Ltd., Bangalore, India (Aug. 1995 - June 1996).
• Centre for Development of Advanced Computing (CDAC), Bangalore, India (Summer 1994).

Collaborators
David Applegate, William Cook, Gerard Cornuejols, Daniel Espinoza, Matteo Fischetti, Marcos Goycoolea, Oktay Gunluk, Jayant R. Kalagnanam , Andrea Lodi, Ramesh Neelamani, Deepak Rajan, Chandra Reddy, Andre Rohe, Gregory Sorkin