Keywords. 3-manifolds, Ozsvath-Szabo Heegaard Floer homology, Seiberg-Witten invariants, Seifert manifolds, Lens spaces, Casson-Walker invariant, Q-homology spheres, Reidemeister--Turaev torsion, normal surface singularities, rational singularities, elliptic singularities
AMS subject classification. Primary: 57M27, 57R57. Secondary: 14E15, 14B15, 14J17, 32S25, 32S45.
DOI: 10.2140/gt.2005.9.991Submitted to GT on 22 August 2004. Paper accepted 13 April 2005. Paper published 1 June 2005.
Department of Mathematics, Ohio State University
Columbus, OH 43210, USA
Renyi Institute of Mathematics, Budapest, Hungary
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