G-monopole invariants on some connected sums of 4-manifolds

Abstract

On a smooth closed oriented $4$-manifold $M$ with a smooth action of a finite group $G$ on a Spin${}^c$ structure, $G$-monopole invariant is defined by "counting" $G$-invariant solutions of Seiberg-Witten equations for any $G$-invariant Riemannian metric on $M$. We compute $G$-monopole invariants on some $G$-manifolds. For example, the connected sum of $k$ copies of a 4-manifold with nontrivial mod 2 Seiberg-Witten invariant has nonzero ${\mathbb{Z}}_k$-monopole invariant mod 2, where the ${\mathbb{Z}}_k$-action is given by cyclic permutations of $k$ summands.

arXiv admin note: substantial text overlap with arXiv:1108.3875

References in corpus (1)

• Completion of the Proof of the Geometrization Conjecture