On nontrivial characteristic classes of contact foliations

On nontrivial characteristic classes of contact foliations
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by Wei Lung Ting PDF

Proc. Amer. Math. Soc. 75 (1979), 131-138 Request permission

In this article we give some nontrivial realizations of secondary characteristic classes of contact foliations.

References

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On the linear independence of certain cohomology classes of

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