manuscripta mathematica

, Volume 63, Issue 2, pp 157–171 | Cite as

On the number of non-equivalent differentiable structures on 4-manifolds

  • Mario Salvetti


By using results from [7], [8] we show that for any positive integer k there exist k simply-conected algebraic surfaces of general type which are pairwise homeomorphic but not diffeomorphic.


Positive Integer Number Theory General Type Algebraic Geometry Topological Group 
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Copyright information

© Springer-Verlag 1989

Authors and Affiliations

  • Mario Salvetti
    • 1
  1. 1.Dipartimento di MatematicaPisaItaly

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