Skip to main content
Search type Search syntax
Tags [tag]
Exact "words here"
Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Code code:"if (foo != bar)"
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Saves in:saves
Status closed:yes
duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
Exclude -[tag]
-apples
For more details on advanced search visit our help page
Results tagged with
Search options not deleted user 21676

Questions about the branch of combinatorics called graph theory (not to be used for questions concerning the graph of a function). This tag can be further specialized via using it in combination with more specialized tags such as extremal-graph-theory, spectral-graph-theory, algebraic-graph-theory, topological-graph-theory, random-graphs, graph-colorings and several others.

8 votes
5 answers
17k views

How to find central vertex in a graph?

I am learning graph theory and some concept that I cannot figure it out. A vertex is central in $G$ if its greatest distance from any other vertex is as small as possible. Is there any algorithm to fi …
Mathsniper's user avatar
1 vote
1 answer
8k views

how to proof "every loopless graph G has a bipartite subgraph with at least e(G)/2 edges"? [closed]

I am reading "introduction to graph theory" written by Douglas. I try to understand the proof of 1.3.19 theorem from this book but I failed... Here is the statement. $\text{Every loopless graph G has …
Mathsniper's user avatar