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math.AG2001
On Gorenstein Surfaces Dominated by P^2
R. V. Gurjar, C. R. Pradeep, D. -Q. Zhang
In this paper we prove that a normal Gorenstein surface dominated by the projective plane P^2 is isomorphic to a quotient P^2/G, where G is a finite group of automorphisms of P^2 (…
math.AG2001
Fundamental groups of open K3 surfaces, Enriques surfaces and Fano 3-folds
J. Keum, D. -Q. Zhang
We investigate when the fundamental group of the smooth part of a K3 surface or Enriques surface with Du Val singularities, is finite. As a corollary we give an effective upper bou…