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incidence_matrix [2014/02/08 02:02] nikolaj |
incidence_matrix [2014/02/10 11:58] nikolaj |
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==== Discussion ==== | ==== Discussion ==== | ||
The index $i$ in $M_{ij}$ labels the vertices and the index $j$ labels the edges. The definition says that every edge has exactly two endpoints. | The index $i$ in $M_{ij}$ labels the vertices and the index $j$ labels the edges. The definition says that every edge has exactly two endpoints. | ||
+ | |||
+ | Every incidence matrix corresponds to (a representative of the isomorphism class of) a [[finite undirected graph]]. | ||
==== Parents ==== | ==== Parents ==== | ||
=== Subset of === | === Subset of === | ||
[[Matrix]] | [[Matrix]] | ||
+ | === Related === | ||
+ | [[Finite undirected graph]] |