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» Hamiltonian-Laceability of Star Graphs
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APPROX
2007
Springer
115views Algorithms» more  APPROX 2007»
15 years 3 months ago
Improved Approximation Algorithms for the Spanning Star Forest Problem
A star graph is a tree of diameter at most two. A star forest is a graph that consists of node-disjoint star graphs. In the spanning star forest problem, given an unweighted graph ...
Ning Chen, Roee Engelberg, C. Thach Nguyen, Prasad...
114
Voted
EUROPAR
2010
Springer
14 years 7 months ago
Starsscheck: A Tool to Find Errors in Task-Based Parallel Programs
Star Superscalar is a task-based programming model. The programmer starts with an ordinary C program, and adds pragmas to mark functions as tasks, identifying their inputs and outp...
Paul M. Carpenter, Alex Ramírez, Eduard Ayg...
71
Voted
JGT
2010
103views more  JGT 2010»
14 years 8 months ago
Proof of a conjecture on fractional Ramsey numbers
: Jacobson, Levin, and Scheinerman introduced the fractional Ramsey function rf (a1,a2, ...,ak) as an extension of the classical definition for Ramsey numbers. They determined an e...
Jason Brown, Richard Hoshino
SODA
2008
ACM
84views Algorithms» more  SODA 2008»
14 years 11 months ago
On stars and Steiner stars
A Steiner star for a set P of n points in Rd connects an arbitrary point in Rd to all points of P, while a star connects one of the points in P to the remaining n - 1 points of P....
Adrian Dumitrescu, Csaba D. Tóth
87
Voted
DAM
2006
88views more  DAM 2006»
14 years 9 months ago
A characterization of triangle-free tolerance graphs
We prove that a triangle-free graph G is a tolerance graph if and only if there exists a set of consecutively ordered stars that partition the edges of G. Since tolerance graphs a...
Arthur H. Busch