Skip to Main content Skip to Navigation
New interface
Reports (Research report)

Common Tangents to Spheres in R^3

Ciprian Borcea Xavier Goaoc 1 Sylvain Lazard 1 Sylvain Petitjean 1 
1 ISA - Models, algorithms and geometry for computer graphics and vision
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : We prove that four spheres in $\R^3$ have infinitely many real common tangents if and only if they have aligned centers and at least one real common tangent.
Document type :
Reports (Research report)
Complete list of metadata
Contributor : Rapport De Recherche Inria Connect in order to contact the contributor
Submitted on : Friday, May 19, 2006 - 9:11:15 PM
Last modification on : Wednesday, October 26, 2022 - 8:15:59 AM
Long-term archiving on: : Sunday, April 4, 2010 - 9:42:06 PM


  • HAL Id : inria-00070675, version 1



Ciprian Borcea, Xavier Goaoc, Sylvain Lazard, Sylvain Petitjean. Common Tangents to Spheres in R^3. [Research Report] RR-5325, INRIA. 2004, pp.16. ⟨inria-00070675⟩



Record views


Files downloads