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Book Chapter
Approximation Schemes for Degree-Restricted MST and Red-Blue Separation Problem
Book Series
Lecture Notes in Computer Science
Publisher
Springer Berlin / Heidelberg
ISSN
0302-9743 (Print) 1611-3349 (Online)
Volume
Volume 2719/2003
Book
Automata, Languages and Programming
DOI
10.1007/3-540-45061-0
Copyright
2003
ISBN
978-3-540-40493-4
DOI
10.1007/3-540-45061-0_16
Pages
190-191
Subject Collection
Computer Science
SpringerLink Date
Wednesday, January 01, 2003
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Approximation Schemes for Degree-Restricted MST and Red-Blue Separation Problem
Sanjeev Arora
5
and Kevin L. Chang
6
(5)
Princeton University, Princeton, NJ
(6)
Yale University, New Haven, CT
Abstract
We develop a quasi-polynomial time approximation scheme for the Euclidean version of the Degree-restricted MST by adapting techniques used previously for approximating TSP. Given
n
points in the plane,
d
= 2 or 3, and
∈
> 0, the scheme finds an approximation with cost within 1 +
∈
of the lowest cost spanning tree with the property that all nodes have degree at most
d
. We also develop a polynomial time approximation scheme for the Euclidean version of the Red-Blue Separation Problem.
Supported by David and Lucille Packard Fellowship, and NSF Grants CCR-0098180 and CCR-009818. Work done partially while visiting the CS Dept at UC Berkeley.
Sanjeev
Arora
Email:
arora@cs.princeton.edu
Kevin
L.
Chang
Email:
kevin.chang@yale.edu
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