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math.DG2006
Deformations of Scalar-Flat Anti-Self-Dual metrics and Quotients of Enriques Surfaces
Mustafa Kalafat
In this article, we prove that a quotient of a K3 surface by a free Z_2+Z_2 action does not admit any metric of positive scalar curvature. This shows that the scalar flat anti self…
math.DG2006★ 1 cited
Scalar Curvature and Connected Sums Of Self-Dual 4-Manifolds
Mustafa Kalafat
Under a vanishing hypothesis, Donaldson and Friedman proved that the connected sum of two self-dual Riemannian 4-Manifolds is again self-dual. Here we prove that the same result ca…