Nondiffeomorphic symplectic 4-manifolds with the same Seiberg-Witten invariants

Abstract

The goal of this paper is to demonstrate that, at least for nonsimply connected 4-manifolds, the Seiberg-Witten invariant alone does not determine diffeomorphism type within the same homeomorphism type.

9 pages. Published copy, also available at http://www.maths.warwick.ac.uk/gt/GTMon2/paper5.abs.html