Math 2602 A1 - A3
Homework # 7
Due Tuesday, March 2, 2004
1. Let G be the (simple) graph with vertices {
1 , 2 , 3 , . . . , 8 }and the adjacency matrix below.
1 2
3 4 5 6
7 8
1 0 1 1
0 1 1 0
1
2 1 0 1
0 0 1 1
0
3 1 1 0
1 0 0 1
0
4 0 0 1
0 1 0 1
1
5 1 0 0
1 0 1 0
1
6 1 1 0
0 1 0 1
1
7 0 1 1
1 0 1 0
1
8 1 0 0
1 1 1 1
0
i) Find the clique number (p. 211) and the chromatic
number (p. 257) of G .
ii) Does G have an Euler cycle? An Euler
path? Explain.
iii) Is G planar? Explain.
iv) If { i , j } is an edge of G , let its length
be | i - j | . Find the total length of a shortest path
from
2 to 8 in G .