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edgeConn

computed edge connectivity and min disconnecting set for an undirected graph


Description

computed edge connectivity and min disconnecting set for an undirected graph

Usage

edgeConnectivity(g)

Arguments

g

an instance of the graph class with edgemode “undirected”

Details

Consider a graph G consisting of a single connected component. The edge connectivity of G is the minimum number of edges in G that can be cut to produce a graph with two (disconnected) components. The set of edges in this cut is called the minimum disconnecting set.

Value

A list:

connectivity

the integer describing the number of edges that must be severed to obtain two components

minDisconSet

a list (of length connectivity) of pairs of node names describing the edges that need to be cut to obtain two components

Author(s)

Vince Carey <stvjc@channing.harvard.edu>

References

Boost Graph Library ( www.boost.org/libs/graph/doc/index.html )

The Boost Graph Library: User Guide and Reference Manual; by Jeremy G. Siek, Lie-Quan Lee, and Andrew Lumsdaine; (Addison-Wesley, Pearson Education Inc., 2002), xxiv+321pp. ISBN 0-201-72914-8

See Also

Examples

con <- file(system.file("XML/conn.gxl",package="RBGL"), open="r")
coex <- fromGXL(con)
close(con)

edgeConnectivity(coex)

RBGL

An interface to the BOOST graph library

v1.66.0
Artistic-2.0
Authors
Vince Carey <stvjc@channing.harvard.edu>, Li Long <li.long@isb-sib.ch>, R. Gentleman
Initial release

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