order (of a graph)OrderOfAGraph2002-03-07 11:32:582006-10-13 19:35:10Definition% this is the default PlanetMath preamble. as your knowledge
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% define commands hereThe \emph{order} of a graph $G$ is the number of vertices in $G$; it is denoted by $|G|$. The same notation is used for the number of elements (cardinality) of a set. Thus, $|G| = |V(G)|$. We write $G^n$ for an \emph{arbitrary graph of order n}. Similarly, $G(n,m)$ denotes an \emph{arbitrary graph of order n and size m}.
\footnotesize{Adapted with permission of the author from \emph{\PMlinkescapetext{Modern Graph Theory}} by B\'{e}la Bollob\'{a}s, published by Springer-Verlag New York, Inc., 1998.}