Higher cohomology operations and R-completion

Abstract

Let $R={\mathbb{F}}_p$ or a field of characteristic $0$. For each $R$-good topological space $Y$, we define a collection of higher cohomology operations which, together with the cohomology algebra $H^{\ast }(Y;R)$ suffice to determine $Y$ up to $R$-completion. We also provide a similar collection of higher cohomology operations which determine when two maps $f_0,f_1:Z\to Y$ between $R$-good spaces(inducing the same algebraic homomorphism $H^{\ast }(Y;R)\to H^{\ast }(Z;R)$) are $R$-equivalent.

Final version, to appear in Algebraic and Geometric Topology

References in corpus (1)

• Mapping spaces and R-completion