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math.AG2000
Surfaces with many nodes
Igor Dolgachev, Margarida Mendes Lopes, Rita Pardini
We describe smooth rational projective algebraic surfaces over an algebraically closed field of characteristic different from 2 which contain $n \ge \b_2-2$ disjoint smooth rationa…
math.AG2000
Polar Cremona transformations
Igor V. Dolgachev
In this paper we address the following question arising from the work of P. Etingof, D. Kazhdan and A. Polishchuk (math.AG/0003009): given a homogeneous complex polynomial, when th…