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The Envelope of Lines Meeting a Fixed Line and Tangent to Two Spheres [PDF]

open access: yesDiscrete and Computational Geometry, 2005
We study the set of lines that meet a fixed line and are tangent to two spheres and classify the configurations consisting of a single line and three spheres for which there are infinitely many lines tangent to the three spheres that also meet the given ...
Frank Sottile
exaly   +5 more sources

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