14. Give a careful proof that the graph below is not planar. Hint. The girth of the graph is 4.
14. Give a careful proof that the graph below is not planar. Hint. The girth of the graph is 4.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
Planar Graphs
Transcribed Image Text:14. Give a careful proof that the graph below is not planar.
Hint.
The girth of the graph is 4.
15. Explain why we cannot use the same sort of proof we did in Exercise 2.3.14
to prove that the graph below is not planar. Then explain how you know the
graph is not planar anyway.
Exercise 14. Give a careful proof that the graph below is not planar.
Hint.
The girth of the graph is 4.
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