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math.CO2019
Areas of triangles and SL_2 actions in finite rings
Alex McDonald
In Euclidean space, one can use the dot product to give a formula for the area of a triangle in terms of the coordinates of each vertex. Since this formula involves only addition,…
math.CO2019
Congruence classes of large configurations in vector spaces over finite fields
Alex McDonald
Bennett, Hart, Iosevich, Pakianathan, and Rudnev found an exponent such that any set with determines c…