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Discrete Mathematics With Applicat...

5th Edition
EPP + 1 other
ISBN: 9781337694193

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Discrete Mathematics With Applicat...

5th Edition
EPP + 1 other
ISBN: 9781337694193
Textbook Problem
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Suppose that T is a minimum spanning tree for a connected, weighted graph G and that G contains an edge e (not a loop) that is not in T. Let v and w be the endpoints of e. By exercise 18 there is a unique path in T from v to w. Let e’ be any edge of this path. Prove that w ( e ) w ( e ) .

To determine

To prove:

w(e')w(e).

Explanation

Given information:

Suppose, there is a minimum spanning tree T for a connected, weighted graph G.

The connected graph contains an edge e which is not in spanning tree T.

Concept used:

Correctness of Prim’s Algorithm:

When a connected, weighted graph G is input to prim’s algorithm, the output is a minimum spanning tree for G.

Proof:

Consider the end points of the edge are v and w.

The objective is to prove that w(e')w(e).

Assume that w(e')>w(e).

Form a new graph T' by adding e to T and deleting e'.

The addition of an edge to a spanning tree creates a circuit, and the deletion of an edge from a circuit does not disconnect a graph.

Consequently T' is also a spanning tree for G

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Chapter 10 Solutions

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Sect-10.1 P-2ESSect-10.1 P-3ESSect-10.1 P-4ESSect-10.1 P-5ESSect-10.1 P-6ESSect-10.1 P-7ESSect-10.1 P-8ESSect-10.1 P-9ESSect-10.1 P-10ESSect-10.1 P-11ESSect-10.1 P-12ESSect-10.1 P-13ESSect-10.1 P-14ESSect-10.1 P-15ESSect-10.1 P-16ESSect-10.1 P-17ESSect-10.1 P-18ESSect-10.1 P-19ESSect-10.1 P-20ESSect-10.1 P-21ESSect-10.1 P-22ESSect-10.1 P-23ESSect-10.1 P-24ESSect-10.1 P-25ESSect-10.1 P-26ESSect-10.1 P-27ESSect-10.1 P-28ESSect-10.1 P-29ESSect-10.1 P-30ESSect-10.1 P-31ESSect-10.1 P-32ESSect-10.1 P-33ESSect-10.1 P-34ESSect-10.1 P-35ESSect-10.1 P-36ESSect-10.1 P-37ESSect-10.1 P-38ESSect-10.1 P-39ESSect-10.1 P-40ESSect-10.1 P-41ESSect-10.1 P-42ESSect-10.1 P-43ESSect-10.1 P-44ESSect-10.1 P-45ESSect-10.1 P-46ESSect-10.1 P-47ESSect-10.1 P-48ESSect-10.1 P-49ESSect-10.1 P-50ESSect-10.1 P-51ESSect-10.1 P-52ESSect-10.1 P-53ESSect-10.1 P-54ESSect-10.1 P-55ESSect-10.1 P-56ESSect-10.1 P-57ESSect-10.2 P-1TYSect-10.2 P-2TYSect-10.2 P-3TYSect-10.2 P-4TYSect-10.2 P-5TYSect-10.2 P-6TYSect-10.2 P-1ESSect-10.2 P-2ESSect-10.2 P-3ESSect-10.2 P-4ESSect-10.2 P-5ESSect-10.2 P-6ESSect-10.2 P-7ESSect-10.2 P-8ESSect-10.2 P-9ESSect-10.2 P-10ESSect-10.2 P-11ESSect-10.2 P-12ESSect-10.2 P-13ESSect-10.2 P-14ESSect-10.2 P-15ESSect-10.2 P-16ESSect-10.2 P-17ESSect-10.2 P-18ESSect-10.2 P-19ESSect-10.2 P-20ESSect-10.2 P-21ESSect-10.2 P-22ESSect-10.2 P-23ESSect-10.3 P-1TYSect-10.3 P-2TYSect-10.3 P-3TYSect-10.3 P-1ESSect-10.3 P-2ESSect-10.3 P-3ESSect-10.3 P-4ESSect-10.3 P-5ESSect-10.3 P-6ESSect-10.3 P-7ESSect-10.3 P-8ESSect-10.3 P-9ESSect-10.3 P-10ESSect-10.3 P-11ESSect-10.3 P-12ESSect-10.3 P-13ESSect-10.3 P-14ESSect-10.3 P-15ESSect-10.3 P-16ESSect-10.3 P-17ESSect-10.3 P-18ESSect-10.3 P-19ESSect-10.3 P-20ESSect-10.3 P-21ESSect-10.3 P-22ESSect-10.3 P-23ESSect-10.3 P-24ESSect-10.3 P-25ESSect-10.3 P-26ESSect-10.3 P-27ESSect-10.3 P-28ESSect-10.3 P-29ESSect-10.3 P-30ESSect-10.4 P-1TYSect-10.4 P-2TYSect-10.4 P-3TYSect-10.4 P-4TYSect-10.4 P-5TYSect-10.4 P-6TYSect-10.4 P-7TYSect-10.4 P-1ESSect-10.4 P-2ESSect-10.4 P-3ESSect-10.4 P-4ESSect-10.4 P-5ESSect-10.4 P-6ESSect-10.4 P-7ESSect-10.4 P-8ESSect-10.4 P-9ESSect-10.4 P-10ESSect-10.4 P-11ESSect-10.4 P-12ESSect-10.4 P-13ESSect-10.4 P-14ESSect-10.4 P-15ESSect-10.4 P-16ESSect-10.4 P-17ESSect-10.4 P-18ESSect-10.4 P-19ESSect-10.4 P-20ESSect-10.4 P-21ESSect-10.4 P-22ESSect-10.4 P-23ESSect-10.4 P-24ESSect-10.4 P-25ESSect-10.4 P-26ESSect-10.4 P-27ESSect-10.4 P-28ESSect-10.4 P-29ESSect-10.4 P-30ESSect-10.4 P-31ESSect-10.5 P-1TYSect-10.5 P-2TYSect-10.5 P-3TYSect-10.5 P-4TYSect-10.5 P-5TYSect-10.5 P-1ESSect-10.5 P-2ESSect-10.5 P-3ESSect-10.5 P-4ESSect-10.5 P-5ESSect-10.5 P-6ESSect-10.5 P-7ESSect-10.5 P-8ESSect-10.5 P-9ESSect-10.5 P-10ESSect-10.5 P-11ESSect-10.5 P-12ESSect-10.5 P-13ESSect-10.5 P-14ESSect-10.5 P-15ESSect-10.5 P-16ESSect-10.5 P-17ESSect-10.5 P-18ESSect-10.5 P-19ESSect-10.5 P-20ESSect-10.5 P-21ESSect-10.5 P-22ESSect-10.5 P-23ESSect-10.5 P-24ESSect-10.5 P-25ESSect-10.6 P-1TYSect-10.6 P-2TYSect-10.6 P-3TYSect-10.6 P-4TYSect-10.6 P-5TYSect-10.6 P-6TYSect-10.6 P-7TYSect-10.6 P-1ESSect-10.6 P-2ESSect-10.6 P-3ESSect-10.6 P-4ESSect-10.6 P-5ESSect-10.6 P-6ESSect-10.6 P-7ESSect-10.6 P-8ESSect-10.6 P-9ESSect-10.6 P-10ESSect-10.6 P-11ESSect-10.6 P-12ESSect-10.6 P-13ESSect-10.6 P-14ESSect-10.6 P-15ESSect-10.6 P-16ESSect-10.6 P-17ESSect-10.6 P-18ESSect-10.6 P-19ESSect-10.6 P-20ESSect-10.6 P-21ESSect-10.6 P-22ESSect-10.6 P-23ESSect-10.6 P-24ESSect-10.6 P-25ESSect-10.6 P-26ESSect-10.6 P-27ESSect-10.6 P-28ESSect-10.6 P-29ESSect-10.6 P-30ESSect-10.6 P-31ES