Duality and small functors

Abstract

The homotopy theory of small functors is a useful tool for studying various questions in homotopy theory. In this paper, we develop the homotopy theory of small functors from spectra to spectra, and study its interplay with Spanier-Whitehead duality and enriched representability in the dual category of spectra. We note that the Spanier-Whitehead duality functor $D:\mathrm{Sp}\to {\mathrm{Sp}}^{\mathrm{op}}$ factors through the category of small functors from spectra to spectra and construct a new model structure on the category of small functors, which is Quillen equivalent to ${\mathrm{Sp}}^{\mathrm{op}}$. In this new framework for the Spanier-Whitehead duality, $\mathrm{Sp}$ and ${\mathrm{Sp}}^{\mathrm{op}}$ are full subcategories of the category of small functors and dualization becomes just a fibrant replacement in our new model structure.

38 pages, final version, to appear in Algebraic and Geometric Topology

References in corpus (3)

• Higher Topos Theory
• Calculus of functors and model categories II
• Locally class-presentable and class-accessible categories

Cited by in corpus (2)

• A classification of small linear functors
• A variant of a Dwyer-Kan theorem for model categories