# HG changeset patch
# User Minh Van Nguyen
# Date 1272435432 25200
# Node ID 4a624097a97bdd20e5bcc484ae37bc9425adbb57
# Parent e2ccb846f2962cbe254f534ececfd0fbc9ff5045
#8786: autogenerated broken links to Wikipedia
diff --git a/sage/graphs/graph.py b/sage/graphs/graph.py
--- a/sage/graphs/graph.py
+++ b/sage/graphs/graph.py
@@ -398,8 +398,8 @@
r"""
Undirected graph.
- A graph is a set of vertices connected by edges
- (cf. http://en.wikipedia.org/wiki/Graph_(mathematics) ).
+ A graph is a set of vertices connected by edges. See also the
+ `Wikipedia article on graphs `_.
One can very easily create a graph in Sage by typing::
@@ -1474,10 +1474,11 @@
def strong_orientation(self):
r"""
- Returns a strongly connected orientation of the current graph.
- ( cf. http://en.wikipedia.org/wiki/Strongly_connected_component )
+ Returns a strongly connected orientation of the current graph. See
+ also the
+ `Wikipedia article on strongly connected component `_.
- An orientation of a an undirected graph is a digraph obtained by
+ An orientation of an undirected graph is a digraph obtained by
giving an unique direction to each of its edges. An orientation
is said to be strong if there is a directed path between each
pair of vertices.
@@ -1926,8 +1927,8 @@
once the vertices of each `S_h` have been merged to create
a new graph `G'`, this new graph contains `H` as a subgraph.
- For more information of minor theory, see
- http://en.wikipedia.org/wiki/Minor_(graph_theory)
+ For more information, see the
+ `Wikipedia article on graph minor `_.
INPUT:
@@ -3041,10 +3042,9 @@
Given a graph `G`, a Gomory-Hu tree `T` of `G` is a tree
with the same set of vertices, and such that the maximal flow
- between any two vertices is the same in `G` as in `T`.
- (see http://en.wikipedia.org/wiki/Gomory%E2%80%93Hu_tree)
- Note that, in general, a graph admits more than one Gomory-Hu
- tree.
+ between any two vertices is the same in `G` as in `T`. See the
+ `Wikipedia article on Gomory-Hu tree `_.
+ Note that, in general, a graph admits more than one Gomory-Hu tree.
OUTPUT: