# subgraph\_isomorphisms for considering absent edge

**URL:** <https://igraph.discourse.group/t/subgraph-isomorphisms-for-considering-absent-edge/1697>\
**Category:** Usage\
**Tags:** R\
**Created:** [6 November 2023 19:59 UTC](https://igraph.discourse.group/t/subgraph-isomorphisms-for-considering-absent-edge/1697 "2023-11-06T19:59:59Z")\
**Posts on this page:** 1\
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**Author:** ![szhorvat](https://yyz2.discourse-cdn.com/free1/user_avatar/igraph.discourse.group/szhorvat/32/3_2.png) [@szhorvat](https://igraph.discourse.group/u/szhorvat)\
**Post date:** [6 November 2023 20:38 UTC](https://igraph.discourse.group/t/subgraph-isomorphisms-for-considering-absent-edge/1697/4 "2023-11-06T20:38:57Z")

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Yes, you can achieve the same by using an appropriate `domains` argument. For each vertex, give the list of other vertices with the same colour. See the documentation for details. I’m sorry, I don’t have time to write an example now.

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