Spindle-configurations of skew lines

Roland Bacher, David Garber

Research output: Contribution to journalArticlepeer-review


This paper is a contribution to the classification of configurations of skew lines, as studied mainly by Viro and his collaborators. We prove an improvement of a conjecture made by Crapo and Penne which characterizes isotopy classes of skew configurations with spindle-structure. By this result we can define an invariant, spindlegenus, for spindle-configurations.

Original languageEnglish
Pages (from-to)1049-1081
Number of pages33
JournalGeometry and Topology
StatePublished - 30 May 2007
Externally publishedYes


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