Bordism Groups of Immersions and Classes Represented by Self-Intersections
arXiv:math/0504152 · doi:10.2140/agt.2007.7.1081
Abstract
We prove a geometrical version of Herbert's theorem by considering the self-intersection immersions of a self-transverse immersion up to bordism. This generalises Herbert's theorem to additional cohomology theories and gives a commutative diagram in the homotopy of Thom complexes. The proof uses Koschorke and Sanderson's operations and the fact that bordism of immersions gives a functor on the category of smooth manifolds and immersions.
16 pages