Mathematics – Operator Algebras
Scientific paper
2010-09-04
Mathematics
Operator Algebras
17 pages, 4 figures; revised
Scientific paper
A covariant functor from fibrations over the circle to a family of
AF-algebras is constructed; the functor takes continuous maps between such
fibrations to stable homomorphisms of the AF-algebras. We use this functor to
develop an obstruction theory for the torus bundles of dimension 2, 3 and 4.
Nikolaev Igor
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