Turning vector bundles

Diarmuid Crowley, Csaba Nagy, Blake Sims +1

We define a turning of a rank-$2k$ vector bundle $E\to B$ to be a homotopy of bundle automorphisms ${\psi }_t$ from ${\mathbb{I}d}_E$, the identity of $E$, to $-{\mathbb{I}d}_E$, minus the…