Obstruction classes and Pontrjagin classes (Ex)
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− | + | Take the stable vector bundle over the $4i$-sphere corresponding to the generator of $\pi_{4i} BO = \mathbb{Z}$. What's its $i$-th Pontryagin class in $H^{4i}(S^{4i}) \cong \mathbb{Z}$ ? | |
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Revision as of 17:48, 17 March 2010
Contents |
1 Question
Take the stable vector bundle over the -sphere corresponding to the generator of . What's its -th Pontryagin class in ?
2 Answers
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3 Further discussion
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