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On building 4-critical plane and projective plane multiwheels from odd wheels

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octahedral.rev.pdf (101.1Kb)
Autor
Zeps, Dainis
Datum
2013-01-31
Metadata
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Zusammenfassung
We build unbounded classes of plane and projective plane multiwheels that are 4-critical that are received summing odd wheels as edge sums modulo two. These classes can be considered as ascending from a single common graph that can be received as an edge sum modulo two of the octahedron graph O and the minimal wheel W_3. All graphs of these classes belong to 2n-2-edges-class of graphs, among which are those that quadrangulate projective plane, i.e., graphs from the Grötzsch class received applying Mycielski's Construction to an odd cycle.
URI
https://dspace.lu.lv/dspace/handle/7/1335
Collections
  • Preprinti (MII) / Preprints [12]

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