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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.

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Strongly asymmetric graphs

I believe the common name for such graphs is rigid. In fact, most random graphs are rigid. See this reference: On the minimal order of a graphs within a semigroup.
Alex R.'s user avatar
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4 votes
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Where can I find a catalog of known Ramsey numbers?

MathWorld has a pretty decent list (scroll down in the link) and cites numerous papers with good bounds http://mathworld.wolfram.com/RamseyNumber.html
Alex R.'s user avatar
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4 votes
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System of Equations Upper Bound

I asked a related question on math.stackexchange here but would now like to obtain a better bound. This question comes from a graph theory problem. I'll restate the new question here: For $i=1,2,\ldo …
Alex R.'s user avatar
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1 vote
1 answer
361 views

Winding number bijection on graphs

Let $G=(V,E)$ be an isoradial graph. In other words the graph can be imbedded into the plane such that each face (plaquette) can be circumscribed a circle of radius 1 with the circle's center belongin …
Alex R.'s user avatar
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