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» A Lower Bound for Primality
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NETWORKS
2006
15 years 6 months ago
Lower bounds for the relative greedy algorithm for approximating Steiner trees
Abstract. The Steiner tree problem is to find a shortest subgraph that spans a given set of vertices in a graph. This problem is known to be NP-hard and it is well known that a pol...
Stefan Hougardy, Stefan Kirchner
APPML
2005
70views more  APPML 2005»
15 years 6 months ago
Exact lower bound for proportion of maximally embedded beamlet
We prove that the maximal inscribed beamlet is at least 1/7 of an arbitrary line segment (i.e., beam). The implication of this result is addressed.
Xiaoming Huo
IPL
2007
81views more  IPL 2007»
15 years 6 months ago
Lower bounds for testing Euclidean Minimum Spanning Trees
Oren Ben-Zwi, Oded Lachish, Ilan Newman
TOC
2008
89views more  TOC 2008»
15 years 6 months ago
Norms, XOR Lemmas, and Lower Bounds for Polynomials and Protocols
Abstract: This paper presents a unified and simple treatment of basic questions concerning two computational models: multiparty communication complexity and polynomials over GF(2)....
Emanuele Viola, Avi Wigderson
COMBINATORICA
2004
50views more  COMBINATORICA 2004»
15 years 6 months ago
Lower Bounds For Multidimensional Zero Sums
Christian Elsholtz