A 4-sphere with non central radius and its instanton sheaf
arXiv:1402.6609 · doi:10.1007/s11005-014-0739-5
Abstract
We build an SU(2)-Hopf bundle over a quantum toric four-sphere whose radius is non central. The construction is carried out using local methods in terms of sheaves of Hopf-Galois extensions. The associated instanton bundle is presented and endowed with a connection with anti-selfdual curvature.
minor changes, appendix section extended. To appear in Letters in Mathematical Physics. 22 pages, no figures