On the linear independence of certain cohomology classes in the classifying space for subfoliations
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- by Demetrio Domínguez PDF
- Trans. Amer. Math. Soc. 329 (1992), 221-232 Request permission
Abstract:
The purpose of this paper is to establish the linear independence of certain cohomology classes in the Haefliger classifying space $B{\Gamma _{({q_1},{q_2})}}$ for sub-foliations of codimension $({q_{1,}}{q_2})$. The classes considered are of secondary type, not belonging to the subalgebra of $H(B{\Gamma _{({q_1},{q_2})}},R)$ generated by the union of the universal characteristic classes for foliations of codimension ${q_1}$ and ${q_2}$ respectively, and are elements of the kernel of the canonical homomorphism $H(B{\Gamma _{({q_1},{q_2})}},R) \to H(B{\Gamma _{{q_1}}} \times B{\Gamma _d},R)$ with $d = {q_2} - {q_1} > 0$.References
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Additional Information
- © Copyright 1992 American Mathematical Society
- Journal: Trans. Amer. Math. Soc. 329 (1992), 221-232
- MSC: Primary 57R32; Secondary 57R20
- DOI: https://doi.org/10.1090/S0002-9947-1992-1024769-0
- MathSciNet review: 1024769