Homological obstructions to string orientations
<p style="text-align:justify;">We observe that the Poincaré duality isomorphism for a string manifold is an isomorphism of modules over the subalgebra A(2) of the modulo 2 Steenrod algebra. In particular, the pattern of the operations Sq1, Sq2, and Sq4 on the cohomology of a string...
| Main Authors: | , , |
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| Formato: | Journal article |
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Oxford University Press
2010
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