2 papers
math.CO2021
Distinct Angle Problems and Variants
Henry L. Fleischmann, Hongyi B. Hu, Faye Jackson +4
The Erdős distinct distance problem is a ubiquitous problem in discrete geometry. Less well known is Erdős' distinct angle problem, the problem of finding the minimum number of dis…
math.CO2021
Angle chains and pinned variants
Eyvindur Ari Palsson, Steven Senger, Charles Wolf
We study a variant of the Erd\H os unit distance problem, concerning angles between successive triples of points chosen from a large finite point set. Specifically, given a large f…