7 citations · 19 across the 8 of their papers we have counts for
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math.CO2004
Three Colorability of an Arrangement Graph of Great Circles
I. Cahit
Stan Wagon asked the following in 2000. Is every zonohedron face 3-colorable when viewed as a planar map? An equivalent question, under a different guise, is the following: is the…
math.CO2004★ 7 cited
Spiral Chains: A New Proof of the Four Color Theorem
I. Cahit
Acceptable but due to extensive usage of a computer rather unpleasant proof of the famous four color map problem of Francis Guthrie were settled eventually by W. Appel and K. Haken…