105 search results - page 5 / 21 » A 3-Approximation for the Minimum Tree Spanning k Vertices |
FSTTCS
2001
Springer
14 years 4 days ago
2001
Springer
Consider a directed graph G = (V, E) with n vertices and a root vertex r ∈ V . The DMDST problem for G is one of constructing a spanning tree rooted at r, whose maximal degree is...
JUCS
2007
13 years 7 months ago
2007
: We give a tight analysis of an old and popular sweep-line heuristic for constructing a spanning tree of a set of n points in the plane. The algorithm sweeps a vertical line acros...
JACM
2000
13 years 7 months ago
2000
A deterministic algorithm for computing a minimum spanning tree of a connected graph is presented. Its running time is O(m (m, n)), where is the classical functional inverse of Ack...
DAM
2008
13 years 7 months ago
2008
A digraph D is strong if it contains a directed path from x to y for every choice of vertices x, y in D. We consider the problem (MSSS) of finding the minimum number of arcs in a ...
ICALP
2000
Springer
13 years 11 months ago
2000
Springer
We establish that the algorithmic complexity of the minimum spanning tree problem is equal to its decision-tree complexity. Specifically, we present a deterministic algorithm to fi...