Publications
An Improved Approximation Algorithm for Vertex Cover with Hard Capacities.
Proceedings of the 30th International Colloquium on Automata, Languages and Programming (ICALP 2003). 164-175.
(2003). Integrality Ratio for Group Steiner Trees and Directed Steiner Trees.
Proceedings of the Twelfth Symposium on Discrete Algorithms (SODA).
(2003). Tight Lower Bounds for the Asymetric k-Center Problem.
Proceedings of the 36th Annual ACM Symposium on Theory of Computing (STOC04).
(2004). Asymmetric K-Center Is Log* N-Hard to Approximate.
Journal of the ACM. 52(4), 538-551.
(2005).