Question

In: Advanced Math

Let G be a connected graph and let e be a cut edge in G. Let...

Let G be a connected graph and let e be a cut edge in G. Let K be the subgraph of G defined by:

V(K) = V(G) and

E(K) = E(G) - {e}

Prove that K has exactly two connected components. First prove that e cannot be a loop. Thus the endpoint set of e is of the form {v,w}, where v ≠ w. If ṽ∈V(K), prove that either there is a path in K from v to ṽ, or there is a path in K from w to ṽ

Solutions

Expert Solution

Here in the given the graph if we delete the edge which is loop(as like e7) then your graph G can't divide into 2 components

but this edge is not loop then graph G divide into 2 components in which there exits a path.


Related Solutions

Let G be connected, and let e be an edge of G. Prove that e is...
Let G be connected, and let e be an edge of G. Prove that e is a bridge if and only if it is in every spanning tree of G.
Suppose G is a connected cubic graph (regular of degree 3) and e is an edge...
Suppose G is a connected cubic graph (regular of degree 3) and e is an edge such that G − e has two connected components G1 and G2 (a) Explain what connected means. (b) We say that e is a____________ of G (c) show that G1 has an odd number of vertices. (d) draw a connected cubic graph G with an edge e as above.
Given a connected graph G with n vertices. We say an edge of G is a...
Given a connected graph G with n vertices. We say an edge of G is a bridge if the graph becomes a disconnected graph after removing the edge. Give an O(m + n) time algorithm that finds all the bridges. (Partial credits will be given for a polynomial time algorithm.) (Hint: Use DFS)
You are given an undirected graph G = ( V, E ) in which the edge...
You are given an undirected graph G = ( V, E ) in which the edge weights are highly restricted. In particular, each edge has a positive integer weight from 1 to W, where W is a constant (independent of the number of edges or vertices). Show that it is possible to compute the single-source shortest paths in such a graph in O(E+V) time.
If G = (V, E) is a graph and x ∈ V , let G \...
If G = (V, E) is a graph and x ∈ V , let G \ x be the graph whose vertex set is V \ {x} and whose edges are those edges of G that don’t contain x. Show that every connected finite graph G = (V, E) with at least two vertices has at least two vertices x1, x2 ∈ V such that G \ xi is connected.
Let k be an integer satisfying k ≥ 2. Let G be a connected graph with...
Let k be an integer satisfying k ≥ 2. Let G be a connected graph with no cycles and k vertices. Prove that G has at least 2 vertices of degree equal to 1.
Given a connected graph G where edge costs are pair-wise distinct, prove or disprove that the...
Given a connected graph G where edge costs are pair-wise distinct, prove or disprove that the G has a unique MST. Please write Pseudo-code for the algorithms.
# Problem Description Given a directed graph G = (V,E) with edge length l(e) > 0...
# Problem Description Given a directed graph G = (V,E) with edge length l(e) > 0 for any e in E, and a source vertex s. Use Dijkstra’s algorithm to calculate distance(s,v) for all of the vertices v in V. (You can implement your own priority queue or use the build-in function for C++/Python) # Input The graph has `n` vertices and `m` edges. There are m + 1 lines, the first line gives three numbers `n`,`m` and `s`(1 <=...
Graph Theory: Let S be a set of three pairwise-nonadjacent edges in a 3-connected graph G....
Graph Theory: Let S be a set of three pairwise-nonadjacent edges in a 3-connected graph G. Show that there is a cycle in G containing all three edges of S unless S is an edge-cut of G
Design a linear-time algorithm which, given an undirected graph G and a particular edge e in...
Design a linear-time algorithm which, given an undirected graph G and a particular edge e in it, determines whether G has a cycle containing e. Your algorithm should also return the length (number of edges) of the shortest cycle containing e, if one exists. Just give the algorithm, no proofs are necessary. Hint: you can use BFS to solve this.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT