The nonexistence conjecture for planar covers of the displayed cover of
The nonexistence conjecture for planar covers of the displayed cover of
Let be the complete graph on four vertices, and let be the specific cover of shown in Figure~. A finite planar cover is a finite cover whose covering graph embeds in the plane. The composition with is required to be understood as the induced cover of .
Nonexistence conjecture for the displayed cover. For every finite planar cover
the composition
does not fulfill Properties and .
This conjecture concerns the final example in the paper and is presented as a stronger obstruction for that particular cover. The supplied text gives no resolution status.
Sources & referencesView supporting material
Primary source
Yo'av Rieck and Yasushi Yamashita, “On Negami's planar cover conjecture”, arXiv:math/0612342 (2006).
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