pseudographPseudograph2001-11-12 17:41:352006-08-25 20:10:04Definitiongraph\usepackage{amssymb}
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\usepackage{xypic}A \emph{pseudograph} is a graph that allows both parallel edges and loops.
Formally, $G=(V, E)$ is a pseudograph , if $E$ is a multiset $(V^{(2)}, f)$
where $V^{(2)}$ is the set of unordered pairs of $V$.