On affine groups admitting invariant two-point sets
A two-point set is a subset of the plane which meets every line in exactly two points. We discuss previous work on the topological symmetries of a two-point set, and show that there exist subgroups of S<sup>1</sup> which do not leave any two-point set invariant. Further, we show that two...
| 主要な著者: | , |
|---|---|
| フォーマット: | Journal article |
| 言語: | English |
| 出版事項: |
Elsevier
2009
|
| 主題: |