Obstruction theory on 7-manifolds
Algebraic Topology
2019-09-20 v3
Abstract
This paper gives a uniform, self-contained and direct approach to a variety of obstruction-theoretic problems on manifolds of dimension 7 and 6. We give necessary and sufficient cohomological criteria for the existence of various G-structures on vector bundles over such manifolds especially using low dimensional representations of the group U(2).
Keywords
Cite
@article{arxiv.1811.04666,
title = {Obstruction theory on 7-manifolds},
author = {Martin Cadek and Michael Crabb and Tomas Salac},
journal= {arXiv preprint arXiv:1811.04666},
year = {2019}
}
Comments
17 pages. Added Appendix