(idea) by artemis entreri Thu Dec 28 2000 at 15:01:45
A digraph D is an arborescence if there is a distinguished node x (called the root) and for every node y different from x there is exactly one elementary path from x to y.

--back to combinatorics--
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(definition) by Webster 1913 Tue Dec 21 1999 at 21:52:49

Ar`bo*res"cence (#), n.

The state of being arborescent; the resemblance to a tree in minerals, or crystallizations, or groups of crystals in that form; as, the arborescence produced by precipitating silver.

 

© Webster 1913.

I like it! This writeup has been cooled by:  
discofever, per ouX 2 C!s

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