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Loopless graph
Set
| $V,E$ … set |
| $ \langle V,E,\psi\rangle \in \mathrm{it}(E,V) $ |
| $\langle V,E,\psi\rangle $ … undirected graph |
| $u\in V$ |
| $\{u,u\} $ … not edge |
Discussion
For a graph $G=\langle V,E,\psi\rangle$, we write
| $\{x,y\}$ … edge in $G \equiv \{x,y\}\in\mathrm{im}\ \psi_G$ |
| $\{x,y\}$ … edge in $G$ … loopless \equiv \{x,y\}\in\mathrm{im}\ \psi_G$ |
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Context
