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Showing 2009 · math.COShow all
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math.CO2009
On Visibility and Blockers
Attila Pór, David R. Wood
This expository paper discusses some conjectures related to visibility and blockers for sets of points in the plane.
math.CO2009★ 12 cited
Every Large Point Set contains Many Collinear Points or an Empty Pentagon
Zachary Abel, Brad Ballinger, Prosenjit Bose +7
We prove the following generalised empty pentagon theorem: for every integer , every sufficiently large set of points in the plane contains collinear points or…