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IPL
2010
71views more  IPL 2010»
13 years 8 months ago
New common ancestor problems in trees and directed acyclic graphs
We derive a new generalization of lowest common ancestors (LCAs) in dags, called the lowest single common ancestor (LSCA). We show how to preprocess a static dag in linear time su...
Johannes Fischer, Daniel H. Huson
TALG
2010
59views more  TALG 2010»
13 years 8 months ago
Optimization problems in multiple-interval graphs
Ayelet Butman, Danny Hermelin, Moshe Lewenstein, D...
CORR
2012
Springer
203views Education» more  CORR 2012»
12 years 5 months ago
Constant Factor Lasserre Integrality Gaps for Graph Partitioning Problems
Venkatesan Guruswami, Ali Kemal Sinop, Yuan Zhou