Release Time:2019-03-10  Hits:

Indexed by: Journal Article

Date of Publication: 2008-01-01

Journal: MATHEMATICA SCANDINAVICA

Included Journals: SCIE

Volume: 102

Issue: 1

Page Number: 59-72

ISSN: 0025-5521

Abstract: Let X be a smooth, closed, connected spin 4-manifold with b(1) (X) = 0 and non-positive signature sigma(X). In this paper we use Sciberg-Witten theory to prove that if X admits a spin alternating A(5) action, then b(2)(+)(X) >= vertical bar sigma(X)vertical bar/8 + 3 under some non-degeneracy conditions.