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math.AG2009★ 1 cited
The ideal of relations for the ring of invariants of n points on the line
Ben Howard, John Millson, Andrew Snowden +1
The study of the projective coordinate ring of the (geometric invariant theory) moduli space of n ordered points on P^1 up to automorphisms began with Kempe in 1894, who proved tha…
math.AG2009★ 3 cited
The relations among invariants of points on the projective line
Ben Howard, John Millson, Andrew Snowden +1
We consider the ring of invariants of n points on the projective line. The space (P^1)^n // PGL_2 is perhaps the first nontrivial example of a Geometry Invariant Theory quotient. T…