Sciweavers

36 search results - page 4 / 8
» Lower bounds for testing Euclidean Minimum Spanning Trees
Sort
View
SOFSEM
2007
Springer
14 years 2 months ago
Competitive Maintenance of Minimum Spanning Trees in Dynamic Graphs
Abstract. We consider the problem of maintaining a minimum spanning tree within a graph with dynamically changing edge weights. An online algorithm is confronted with an input sequ...
Miroslaw Dynia, Miroslaw Korzeniowski, Jaroslaw Ku...
WAOA
2007
Springer
170views Algorithms» more  WAOA 2007»
14 years 2 months ago
A 5/3-Approximation for Finding Spanning Trees with Many Leaves in Cubic Graphs
For a connected graph G, let L(G) denote the maximum number of leaves in a spanning tree in G. The problem of computing L(G) is known to be NP-hard even for cubic graphs. We improv...
José R. Correa, Cristina G. Fernandes, Mart...
ICALP
2001
Springer
14 years 24 days ago
Approximating the Minimum Spanning Tree Weight in Sublinear Time
We present a probabilistic algorithm that, given a connected graph G (represented by adjacency lists) of average degree d, with edge weights in the set {1, . . . , w}, and given a ...
Bernard Chazelle, Ronitt Rubinfeld, Luca Trevisan
STOC
1995
ACM
115views Algorithms» more  STOC 1995»
13 years 12 months ago
Geometric lower bounds for parametric matroid optimization
We relate the sequence of minimum bases of a matroid with linearly varying weights to three problems from combinatorial geometry: k-sets, lower envelopes of line segments, and con...
David Eppstein
INFOCOM
1992
IEEE
14 years 12 days ago
Topological Design of Interconnected LAN-MAN Networks
This paper describes a methodology for designing interconnected LAN-MAN networks with the objective of minimizing the average network delay. We consider IEEE 802.3-5 LANs intercon...
Cem Ersoy, Shivendra S. Panwar