arXiv subjects

Andrew Ronan

Publications and source records attributed to Andrew Ronan.

3 recordsLinked to original sources

arXiv2026

A criterion for a Hurewicz cofibration to be a Quillen cofibration

In this paper, we prove that $h$-cofibrations between $q$-cofibrant spaces are $q$-cofibrations. We also present a number of applications, including a pushout-product property for symmetrizable cofibrations, a local-to-global gluing lemma for $q$-cofibrations, a proof that $q$-fibrations between $q$-cofibrant spaces are $h$-fibrations, and an alternative proof of Waner's theorem on $G$-spaces with the $G$-homotopy type of a $G$-CW complex in fibre sequences. Moreover, all of the above generalises readily to the equivariant context, and so we work in the more general equivariant setting throughout.

math.AT↗

arXiv2025

The equivariant covering homotopy property

In this paper, we explain how the more general context of generalised equivariant bundles allows for a simple inductive proof of the ECHP. We also make clear the link between the ECHP and the theory of Hurewicz fibrations.

math.AT↗

arXiv2023

Localisations and completions of nilpotent $G$-spaces

We develop the theory of nilpotent $G$-spaces and their localisations, for $G$ a compact Lie group, via reduction to the non-equivariant case using Bousfield localisation. One point of interest in the equivariant setting is that we can choose to localise or complete at different sets of primes at different fixed point spaces - and the theory works out just as well provided that you invert more primes at $K \leq G$ than at $H \leq G$, whenever $K$ is subconjugate to $H$ in $G$. We also develop the theory in an unbased context, allowing us to extend the theory to $G$-spaces which are not $G$-connected.

math.AT↗