File:Mycielskian construction of 11-vertex Grotzsch graph.png

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Mycielskian_construction_of_11-vertex_Grotzsch_graph.png (702 × 261 pixels, file size: 25 KB, MIME type: image/png)

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English: Mycielskian construction applied to a 5-cycle graph, producing the Grötzsch graph with 11 vertices and 20 edges, the smallest triangle-free 4-chromatic graph.
Date
Source Self-made, with modifications by Peter Magyar
Author David Eppstein
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File:Grötzsch_graph_as_a_Mycielskian.svg
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English: Changed vertex indices


Public domain This work has been released into the public domain by its author, David Eppstein. This applies worldwide.
In some countries this may not be legally possible; if so:
David Eppstein grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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current19:48, 17 May 2018Thumbnail for version as of 19:48, 17 May 2018702 × 261 (25 KB)Magyar25 (talk | contribs){{subst:Upload marker added by en.wp UW}} {{Information |Description = {{en|Mycielskian construction applied to a 5-cycle graph, producing the Grötzsch graph with 11 vertices and 20 edges, the smallest triangle-free 4-chromatic graph.}} |Source = Self-made, with modifications by Peter Magyar |Date = 29 October 2006 |Author = David Eppstein |Permission = https://commons.wikimedia.org/wiki/File:Gr%C3%B6tzsch_graph_as_a_Mycielskian.svg }} ;Other information: {{en|Changed ...

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