Prove that the following conditions on a connected graph Γ are equivalent. Γ is a tree. Given any two vertices v and w in Γ, there is a unique reduced edge path from v to w. For every edge e # E(Γ), removing e from Γ disconnects the graph. (Note: Removing e does not remove its associated vertices.)
Prove that the following conditions on a connected graph Γ are equivalent. Γ is a tree. Given any two vertices v and w in Γ, there is a unique reduced edge path from v to w. For every edge e # E(Γ), removing e from Γ disconnects the graph. (Note: Removing e does not remove its associated vertices.)
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter3: Matrices
Section3.7: Applications
Problem 74EQ
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Prove that the following conditions on a connected graph Γ are equivalent.
- Γ is a tree.
- Given any two vertices v and w in Γ, there is a unique reduced edge path from v to w.
- For every edge e # E(Γ), removing e from Γ disconnects the graph. (Note: Removing e does not remove its associated vertices.)
- If G is finite then #V (Γ) = #E(Γ) + 1.
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