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math.GT2018
Obstructions to choosing distinct points on cubic plane curves
Weiyan Chen
Every smooth cubic plane curve has 9 inflection points, 27 sextatic points, and 72 ``points of type nine". Motivated by these classical algebro-geometric constructions, we study th…
math.GT2016
Twisted cohomology of configuration spaces and spaces of maximal tori via point-counting
Weiyan Chen
We consider two families of algebraic varieties indexed by natural numbers : the configuration space of unordered -tuples of distinct points on , and the sp…