image of the fourth Mycielski graph. Mycielski proved in 1955 that for every k ≥ 1 {\displaystyle k\geq 1} there is a graph with chromatic number k that...
David Eppstein 441x432 (1775 Bytes) {{Information |Description=The Grötzsch graph |Source=self-made |Date=1 Jun 2007 |Author= [[User:David Eppstein|]]...
DescriptionGrötzsch graph as a Mycielskian.svg The Grötzsch graph as the Mycielskian of a 5-cycle graph. Date 29 October 2006 Source self-made; originally...
I, the copyright holder of this work, hereby publish it under the following license: English 3-colored triangle-free planar graph...
construction of 11-vertex Grotzsch graph.png English: Mycielskian construction applied to a 5-cycle graph, producing the Grötzsch graph with 11 vertices and...
DescriptionGráfica de Grötzsch.svg Español: Gráfica de Grötzsch coloreada con cuatro colores. Date 12 May 2016 Source Own work Author Samsitta...
DescriptionGroetzsch-graph.svg The Grötzsch graph Date 22 July 2010 Source Own work, drawn with the Lombardi Spirograph Author David Eppstein...
File:Grötzsch graph as a Mycielskian.svg is a vector version of this file. It should be used in place of this PNG file when not inferior. File:Groetzsch-as-Mycielski...
