A graph is said to have a negative weight cycle when?

Related Questions

• Consider a undirected graph G with vertices { A, B, C, D, E}. In graph G, every edge has distinct weight. Edge CD is edge with minimum weight and edge AB is edge with maximum weight. Then, which of the following is false?
• How many solution/solutions are available for a graph having negative weight cycle?
• A k-regular bipartite graph is the one in which degree of each vertices is k for all the vertices in the graph. Given that the bipartitions of this graph are U and V respectively. What is the relation between them?
• Dijkstra’s Algorithm run on a weighted, directed graph G={V,E} with non-negative weight function w and source s, terminates with d[u]=delta(s,u) for all vertices u in V.
• Bellmann Ford algorithm is used to indicate whether the graph has negative weight cycles or not.
• A graph is found to be 2 colorable. What can be said about that graph?
• It is possible to have a negative chromatic number of bipartite graph.
• Consider a complete graph G with 4 vertices. The graph G has          spanning trees.
• If all the weights of the graph are positive, then the minimum spanning tree of the graph is a minimum cost subgraph.
• Consider the graph shown below. Which of the following are the edges in the MST of the given graph?