Show that a graph without isolated vertices has an Eulerian walk if and only if it...

70.2K

Verified Solution

Question

Advance Math

Show that a graph without isolated vertices has an Eulerian walkif and only if it is connected and all vertices except at most twohave even degree.

Answer & Explanation Solved by verified expert
3.8 Ratings (550 Votes)
Prove If an undirected graph G has an Eulerian walk W the graph can have at most two odd degree vertices For a vertex v let dv be the degree of v and let nWv be the number of edges on W incident to v Since W is Eulerian nWv dv Also observe that nWv must be even for all vertices other than the start and end vertices of the W This is because each time W enters an intermediate vertex it must exit it so W    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students