Lines Tangent to 2n-2 spheres in R^n
Abstract
We show that there are 3 \cdot 2^(n-1) complex common tangent lines to 2n-2 general spheres in R^n and that there is a choice of spheres with all common tangents real.
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Submitted on 22 May 2001 (v1), last revised 16 May 2002 (this version, v2)
Updated
arXiv.org
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