On the signatures of even 4-manifolds

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In this paper, we prove a number of inequalities between the signature and the Betti numbers of a 4-manifold with even intersection form. Furthermore, we introduce a new geometric group invariant and discuss some of its properties.
Revised version, to appear in Math. Proc. Cambridge Phil. Soc

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Geometric Topology, Algebraic Topology, 57M99 (Primary) 57M05 (Secondary)

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http://salesiana.dossiersoluciones.com/handle/123456789/58719

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0002151
 http://arxiv.org/abs/math/0002151

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arXiv