The Quarterly Journal of Mathematics Advance Access originally published online on November 12, 2007
The Quarterly Journal of Mathematics 2008 59(2):207-212; doi:10.1093/qmath/ham035
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DIVISIBILITY OF MILLER–MORITA–MUMFORD CLASSES OF SPIN SURFACE BUNDLES
Mathematical Institute, University of Oxford, 24-29 St. Giles Street, Oxford OX1 3LB, UK
Received 11 May 2007;
revised 2 July 2007
| Abstract |
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In this paper, we study the divisibility properties of characteristic classes of surface bundles with spin structures. It turns out that the divisibility of the characteristic classes in the non-spin case improves by a power of 2.