Questions tagged [vertex-cover]
The vertex-cover tag has no usage guidance.
5 questions
-1
votes
0answers
17 views
2-sat and vertex cover
I've been recently dealing with the classical problem of finding the minimum vertex cover in a bipartite graph. The common approach is to set direction to all edges and run DFS from all vertices of ...
1
vote
0answers
37 views
+50
vertex cover of bipartite graph
This might be helpful
https://codeforces.com/blog/entry/63164
A vertex cover of a graph is a set of vertices such that each edge of the graph is incident to at least one vertex of the set.
A ...
0
votes
0answers
41 views
Show that for each even n, there exists a graph with n vertices, such that the 2-approx VC alg returns a VC which is exactly twice the Minimum-VC
Question: Show that for each even n, there exists a graph with n vertices, such that the ALG(algorithm) returns a vertex cover which is exactly twice the size of minimum vertex cover.
Define ALG: ...
0
votes
1answer
42 views
set cover to edge cover
I want to find set cover of this problem.
I have sets, each of cardinality 3. I want to find set cover.
This is what I am doing.
Treat each set as an edge, which is incident on each of its element.
I ...
1
vote
1answer
104 views
Partitioning vertices in a bipartite graph according to minimum vertex covers
How to solve this problem?
A vertex cover of a graph is a set of vertices such that each edge of the graph is incident to at least one vertex of the set. A minimum vertex cover is a vertex cover ...
