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For the first three exercises let G be a graph with...
graph G, let Bi(G) max{IS|: SC V(G) and Vu, v E S, d(u, v) 2 i},...
graph G, let Bi(G) max{IS|: SC V(G) and Vu, v E S, d(u, v) 2 i}, 10. (7 points) Given a where d(u, v) is the length of a shortest path between u and v. (a) (0.5 point) What is B1(G)? (b) (1.5 points) Let Pn be the path with n vertices. What is B;(Pn)? (c) (2 points) Show that if G is an n-vertex 3-regular graph, then B2(G) < . Further- more, find a 3-regular graph H such that...
Let n >k> 1 with n even and k odd. Make a k-regular graph G by putting n vertices in a circle and...
need help with a and b in this graph theory question
Let n >k> 1 with n even and k odd. Make a k-regular graph G by putting n vertices in a circle and connecting each vertex to the exact a) Show that for all u,v there are k internally disjoint u, v-paths (you (b) Use the previous part, even if you did not prove it, to show that the e vertex and the k 1 closest vertices on either...
* Exercise 1: Let G be the graph with vertex set V(G) = Zi,-{0,-, that two...
* Exercise 1: Let G be the graph with vertex set V(G) = Zi,-{0,-, that two vertices x, y E V(G) are connected by an edge if and only if ,10) and such ryt5 mod 11 or xEy t7 mod 11 1. Draw the graph G. 2. Show that the graph G is Eulerian, i.e., it has a closed trail containing all its edges
Problem #1 Let a "path" on a weighted graph G = (V,E,W) be defined as a...
Problem #1 Let a "path" on a weighted graph G = (V,E,W) be defined as a sequence of distinct vertices V-(vi,v2, ,%)-V connected by a sequence of edges {(vi, t), (Ug, ta), , (4-1,Un)) : We say that (V, E) is a path from tovn. Sketch a graph with 10 vertices and a path consisting of 5 vertices and four edges. Formulate a binary integer program that could be used to find the path of least total weight from one...
2) Let G ME) be an undirected Graph. A node cover of G is a subset...
2) Let G ME) be an undirected Graph. A node cover of G is a subset U of the vertex set V such that every edge in E is incident to at least one vertex in U. A minimum node cover MNC) is one with the lowest number of vertices. For example {1,3,5,6is a node cover for the following graph, but 2,3,5} is a min node cover Consider the following Greedy algorithm for this problem: Algorithm NodeCover (V,E) Uempty While...
Problem 2.13 - page 31. Let G be an n-vertex graph such that for any non-adjacent...
Problem 2.13 - page 31. Let G be an n-vertex graph such that for any non-adjacent vertices U, V EV(G), d(u) + d(u) > n. Prove that G is Hamiltonian
Question 6 Let G be the weighted graph (a) Use Dijkstra's algorithm to find the shortest path from A to F. You can...
Question 6 Let G be the weighted graph (a) Use Dijkstra's algorithm to find the shortest path from A to F. You can do all the work on a single diagram, but, to show that you have used the algorithm correctly, if an annotation needs updating do not erase itjust put a line through it and write the new annotation above that b) In what order are the vertices added to the tree? (c) Notice that the algorithm does not,...
Problem 3 (15 points). Let G (V,E) be the following directed graph. a. 1. Draw the...
Problem 3 (15 points). Let G (V,E) be the following directed graph. a. 1. Draw the reverse graph G of G. 2. Run DFS on G to obtain a post number for each vertex. Assume that in the adjacency list representation of G, vertices are stored alphabetically, and in the list for each vertex, its adjacent vertices are also sorted alphabetically. In other words, the DFS algorithm needs to examine all vertices alphabetically, and when it traverses the adjacent vertices...
7.[6] Consider the graph G below: a.[3] Find a Depth-First Search tree T for the above...
7.[6] Consider the graph G below: a.[3] Find a Depth-First Search tree T for the above graph starting with the vertex 0. Show all the vertices as they are discovered in sequence starting from 1 to the last vertex included in T. b.[3] Find a Breadth-First Search tree T for the above graph starting with the vertex 0. Show all the vertices as they are discovered in sequence starting from 1 to the last vertex included in T.
Problem 8. (2+4+4 points each) A bipartite graph G = (V. E) is a graph whose...
Problem 8. (2+4+4 points each) A bipartite graph G = (V. E) is a graph whose vertices can be partitioned into two (disjoint) sets V1 and V2, such that every edge joins a vertex in V1 with a vertex in V2. This means no edges are within V1 or V2 (or symbolically: Vu, v E V1. {u, u} &E and Vu, v E V2.{u,v} &E). 8(a) Show that the complete graph K, is a bipartite graph. 8(b) Prove that no...
graph G, let Bi(G) max{IS|: SC V(G) and Vu, v E S, d(u, v) 2 i}, 10. (7 points) Given a where d(u, v) is the length of a shortest path between u and v. (a) (0.5 point) What is B1(G)? (b) (1.5 points) Let Pn be the path with n vertices. What is B;(Pn)? (c) (2 points) Show that if G is an n-vertex 3-regular graph, then B2(G) < . Further- more, find a 3-regular graph H such that...
need help with a and b in this graph theory question
Let n >k> 1 with n even and k odd. Make a k-regular graph G by putting n vertices in a circle and connecting each vertex to the exact a) Show that for all u,v there are k internally disjoint u, v-paths (you (b) Use the previous part, even if you did not prove it, to show that the e vertex and the k 1 closest vertices on either...
* Exercise 1: Let G be the graph with vertex set V(G) = Zi,-{0,-, that two vertices x, y E V(G) are connected by an edge if and only if ,10) and such ryt5 mod 11 or xEy t7 mod 11 1. Draw the graph G. 2. Show that the graph G is Eulerian, i.e., it has a closed trail containing all its edges
Problem #1 Let a "path" on a weighted graph G = (V,E,W) be defined as a sequence of distinct vertices V-(vi,v2, ,%)-V connected by a sequence of edges {(vi, t), (Ug, ta), , (4-1,Un)) : We say that (V, E) is a path from tovn. Sketch a graph with 10 vertices and a path consisting of 5 vertices and four edges. Formulate a binary integer program that could be used to find the path of least total weight from one...
2) Let G ME) be an undirected Graph. A node cover of G is a subset U of the vertex set V such that every edge in E is incident to at least one vertex in U. A minimum node cover MNC) is one with the lowest number of vertices. For example {1,3,5,6is a node cover for the following graph, but 2,3,5} is a min node cover Consider the following Greedy algorithm for this problem: Algorithm NodeCover (V,E) Uempty While...
Problem 2.13 - page 31. Let G be an n-vertex graph such that for any non-adjacent vertices U, V EV(G), d(u) + d(u) > n. Prove that G is Hamiltonian
Question 6 Let G be the weighted graph (a) Use Dijkstra's algorithm to find the shortest path from A to F. You can do all the work on a single diagram, but, to show that you have used the algorithm correctly, if an annotation needs updating do not erase itjust put a line through it and write the new annotation above that b) In what order are the vertices added to the tree? (c) Notice that the algorithm does not,...
Problem 3 (15 points). Let G (V,E) be the following directed graph. a. 1. Draw the reverse graph G of G. 2. Run DFS on G to obtain a post number for each vertex. Assume that in the adjacency list representation of G, vertices are stored alphabetically, and in the list for each vertex, its adjacent vertices are also sorted alphabetically. In other words, the DFS algorithm needs to examine all vertices alphabetically, and when it traverses the adjacent vertices...
7.[6] Consider the graph G below: a.[3] Find a Depth-First Search tree T for the above graph starting with the vertex 0. Show all the vertices as they are discovered in sequence starting from 1 to the last vertex included in T. b.[3] Find a Breadth-First Search tree T for the above graph starting with the vertex 0. Show all the vertices as they are discovered in sequence starting from 1 to the last vertex included in T.
Problem 8. (2+4+4 points each) A bipartite graph G = (V. E) is a graph whose vertices can be partitioned into two (disjoint) sets V1 and V2, such that every edge joins a vertex in V1 with a vertex in V2. This means no edges are within V1 or V2 (or symbolically: Vu, v E V1. {u, u} &E and Vu, v E V2.{u,v} &E). 8(a) Show that the complete graph K, is a bipartite graph. 8(b) Prove that no...
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