Departmental Bulletin Paper Derivatives of Secondary Classes and 2-Normal Bundles of Foliations

Asuke, Taro

Journal of mathematical sciences, the University of Tokyo
22 ( 3 )  , pp.893 - 937 , 2015-07-15 , Graduate School of Mathematical Sciences, The University of Tokyo
ISSN:13405705
NCID:AA11021653
Description
Derivatives of secondary characteristic classes for foliations are discussed. It will be shown that one can construct the derivatives in a parallel way to the standard construction of secondary characteristic classes, namely, by using connections and applying the Chern-Weil theory. Some relationship of connections in the construction and transverse TW-connections, which is significant in the study of deformations of the Godbillon-Vey class and the Bott class, are also discussed.
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