3 papers
cs.DS2026
Node-Weighted Multicut in Planar Digraphs
Chandra Chekuri, Rhea Jain
Kawarabayashi and Sidiropoulos [KS22] obtained an -approximation algorithm for Multicut in planar digraphs via a natural LP relaxation, which also establishes a corres…
cs.DS2025
Streaming Algorithms for Network Design
Chandra Chekuri, Rhea Jain, Sepideh Mahabadi +1
We consider the Survivable Network Design problem (SNDP) in the single-pass insertion-only streaming model. The input to SNDP is an edge-weighted graph and an integer…
cs.DS2024
A Polylogarithmic Approximation for Directed Steiner Forest in Planar Digraphs
Chandra Chekuri, Rhea Jain
We consider Directed Steiner Forest (DSF), a fundamental problem in network design. The input to DSF is a directed edge-weighted graph and a collection of vertex pairs…