Description Usage Arguments Details Value Author(s) See Also Examples

Articuation points or cut vertices are vertices whose removal increases the number of connected components in a graph.

1 |

`graph` |
The input graph. It is treated as an undirected graph, even if it is directed. |

Articuation points or cut vertices are vertices whose removal increases the number of connected components in a graph. If the original graph was connected, then the removal of a single articulation point makes it undirected. If a graph contains no articulation points, then its vertex connectivity is at least two.

A numeric vector giving the vertex ids of the articulation points of the input graph.

Gabor Csardi csardi.gabor@gmail.com

`biconnected_components`

, `components`

,
`is_connected`

, `vertex_connectivity`

1 2 3 4 | ```
g <- disjoint_union( make_full_graph(5), make_full_graph(5) )
clu <- components(g)$membership
g <- add_edges(g, c(match(1, clu), match(2, clu)) )
articulation_points(g)
``` |

igraph documentation built on May 30, 2017, 2:56 a.m.

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