Prove or disprove the following. Let G = (V, E) be a simple undirected graph without loops, where |V| > 2. Ju e V 3v e V such that 8(u) = 0 and 8(v) = |V| – 1, where 8(v) is the degree of vertex v.
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- Prove: For any graph r with six vertices ror r complementary contains C3The following are statements about an undirected graph G = (V, E) with edge weights w(e). For each statement, either prove it, or disprove it with a briefly explained counterexample.Prove that if v0 and v1 are distinct vertices of a graph G = (V,E) and a path exists in G from v0 to v1 , then there is a simple path in G from v0 to v1 .
- Consider the problem Q defined below. Prove whether or not problem Q is in NP An undirected graph G(V, E) and a positive integer k. QUESTION: Does graph G have a subset C of nodes such that |C| = k and there exists an edge in E between every pair of nodes in C?prove that the degree of a regular complete tripartite graph kr,s,t with n vertices is given by 2n/3Prove that If a connected planar simple graph has e edges and v vertices with v ≥ 3 and no circuits of length three, then e ≤ 2v − 4. (Show work)
- If G is a (not necessarily simple) graph with n verticeswhere each vertex has degree greater than or equal to (n−1)/2, is thediameter of G necessarily 2 or less? Either prove that the answer tothis question is "yes" or give a counterexample.If v is a leaf of a graph and u is the vertex adjacent to v, then ε(v) = ε(u) +1. State whether true or false. Justify your answer with a short proof or a counter-exampleDiscrete Maths Oscar Levin 3rd eddition 4.3.13: Prove that any planar graph must have a vertex of degree 5 or less. ps: I'd be so glad if you include every detail of the solution. & Thank you soooo much. You are doing a great job ?