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math.AG2019
Plane polar Cremona maps of arbitrarily large degree in positive characteristic
Remi Bignalet-Cazalet
A result of I.V.Dolgachev states that the complex homaloidal polynomials in three variables, i.e. the complex homogeneous polynomials whose polar map is birational, are of degree a…
math.AG2018★ 1 cited
Torsion of a finite base locus
Rémi Bignalet-Cazalet
We interpret geometrically the torsion of the symmetric algebra of the ideal sheaf of a zero-dimensional scheme Z defined by equations in an -dimensional variety. This lea…