Classification of rational angles in plane lattices
نویسندگان
چکیده
This paper is concerned with configurations of points in a plane lattice which determine angles that are rational multiples π \pi . We shall study how many such may appear given and positions, allowing the to vary arbitrarily. classification turns out be much less simple than could expected, leading even parametrizations involving on certain algebraic curves positive genus.
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ژورنال
عنوان ژورنال: Bulletin of the American Mathematical Society
سال: 2021
ISSN: ['0002-9904', '1936-881X']
DOI: https://doi.org/10.1090/bull/1723