On irreducible four--manifolds

Abstract

We show that minimal symplectic 4--manifolds with $b_2^{+}>1$ and with residually finite fundamental groups are irreducible. We also give examples of irreducible orientable four--manifolds with indefinite intersection forms which are not almost complex with respect to either orientation.

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Cited by in corpus (2)

• Minimality and irreducibility of symplectic four-manifolds
• On the asphericity of a symplectic M3 x S1