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3. (a) Let Knbe the complete bipartite graph with n vertices in each part of its bipartition, where n 21. Determine the number of perfect matchings of Kn (b) A matching M in a graph Gis ca a mazi...
a graph theory homework questions parts c,d,e,f 6. Let G be the fllowing graph: 1) Fig, 7.7.1 (n) Does G have a perfect matching? (b) Find four maximum matchings in G. (c) Is there any maximum mat...
a graph theory homework questions
parts c,d,e,f
6. Let G be the fllowing graph: 1) Fig, 7.7.1 (n) Does G have a perfect matching? (b) Find four maximum matchings in G. (c) Is there any maximum matching in G that contains the edge cl? (d) Find four maximal matchings (for definition, see Problem 7.6.20) that are not maximum. (e) Find in G (1) a maximum independent set, (ii) a minimum v-cover, and iii) n minimum c-cover. (f) Find the values...
For any n ≥ 1 let Kn,n be the complete bipartite graph (V, E) where V...
For any n ≥ 1 let Kn,n be the complete bipartite graph (V, E) where V = {xi : 1 ≤ i ≤ n} ∪ {yi : 1 ≤ i ≤ n} E = {{xi , yj} : 1 ≤ i ≤ n, 1 ≤ j ≤ n} (a) Prove that Kn,n is connected for all n ≤ 1. (b) For any n ≥ 3 find two subsets of edges E 0 ⊆ E and E 00 ⊆ E such...
Let G (V, E) be a directed graph with n vertices and m edges. It is known that in dfsTrace of G t...
Let G (V, E) be a directed graph with n vertices and m edges. It is known that in dfsTrace of G the function dfs is called n times, once for each vertex It is also seen that dfs contains a loop whose body gets executed while visiting v once for each vertex w adjacent to v; that is the body gets executed once for each edge (v, w). In the worst case there are n adjacent vertices. What do...
Problem 5. (20 pts) Let r,n N be two natural numbers with r < n. An...
Problem 5. (20 pts) Let r,n N be two natural numbers with r < n. An r x n matrix M consisting of r rows and n columns is said to be a Latin rectangle of size (r, n), if all the entries My belong to the set {1,2,3,..., n), for 1Si<T, 1Sj<T, and the same number does not appear twice in any row or in any column. By defini- tion, a Latin square is a Latin rectangle of size...
a graph theory homework questions
parts c,d,e,f
6. Let G be the fllowing graph: 1) Fig, 7.7.1 (n) Does G have a perfect matching? (b) Find four maximum matchings in G. (c) Is there any maximum matching in G that contains the edge cl? (d) Find four maximal matchings (for definition, see Problem 7.6.20) that are not maximum. (e) Find in G (1) a maximum independent set, (ii) a minimum v-cover, and iii) n minimum c-cover. (f) Find the values...
Let G (V, E) be a directed graph with n vertices and m edges. It is known that in dfsTrace of G the function dfs is called n times, once for each vertex It is also seen that dfs contains a loop whose body gets executed while visiting v once for each vertex w adjacent to v; that is the body gets executed once for each edge (v, w). In the worst case there are n adjacent vertices. What do...
Problem 5. (20 pts) Let r,n N be two natural numbers with r < n. An r x n matrix M consisting of r rows and n columns is said to be a Latin rectangle of size (r, n), if all the entries My belong to the set {1,2,3,..., n), for 1Si<T, 1Sj<T, and the same number does not appear twice in any row or in any column. By defini- tion, a Latin square is a Latin rectangle of size...
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