Equivariant $K$-theory of GKM bundles

Victor Guillemin, Silvia Sabatini, Catalin Zara

Given a fiber bundle of GKM spaces, $\pi :M\to B$, we analyze the structure of the equivariant $K$-ring of $M$ as a module over the equivariant $K$-ring of $B$ by translating th…