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Displaying similar documents to “Factoring polynomials in finite fields: an application of Lang-Weil to a problem in graph theory.”

On rational radii coin representations of the wheel graph

Geir Agnarsson, Jill Bigley Dunham (2013)

Discussiones Mathematicae - General Algebra and Applications

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A flower is a coin graph representation of the wheel graph. A petal of a flower is an outer coin connected to the center coin. The results of this paper are twofold. First we derive a parametrization of all the rational (and hence integer) radii coins of the 3-petal flower, also known as Apollonian circles or Soddy circles. Secondly we consider a general n-petal flower and show there is a unique irreducible polynomial Pₙ in n variables over the rationals ℚ, the affine variety of which...