Book contents
- Frontmatter
- Contents
- Introduction
- 1 Basics of Stable Homotopy Theory
- 2 Sequential Spectra and the Stable Homotopy Category
- 3 The Suspension and Loop Functors
- 4 Triangulated Categories
- 5 Modern Categories of Spectra
- 6 Monoidal Structures
- 7 Left Bousfield Localisation
- Appendix Model Categories
- References
- Index
5 - Modern Categories of Spectra
Published online by Cambridge University Press: 09 March 2020
- Frontmatter
- Contents
- Introduction
- 1 Basics of Stable Homotopy Theory
- 2 Sequential Spectra and the Stable Homotopy Category
- 3 The Suspension and Loop Functors
- 4 Triangulated Categories
- 5 Modern Categories of Spectra
- 6 Monoidal Structures
- 7 Left Bousfield Localisation
- Appendix Model Categories
- References
- Index
Summary
The aim of this chapter is to investigate symmetric monoidal products on our categories of spectra and the stable homotopy category. After motivating this monoidal product in terms of the smash product on spaces and the Spanier–Whitehead category, we show that symmetric spectra and orthogonal spectra are symmetric monoidal model categories. As a consequence, the stable homotopy category is a closed symmetric monoidal category, and this monoidal structure is compatible with the triangulated structure. Using this monoidal product, we can give a modern interpretation of Spanier–Whitehead duality and discuss model categories of ring spectra, modules over ring spectra and commutative ring spectra. We end the chapter with an overview of some of the fundamental properties of spectra and the stable homotopy category, demonstrating that they are central to the study of stable homotopy theory. First, we show that the positive stable model structure on symmetric spectra is initial amongst stable simplicial monoidal model categories. Second, we show that the homotopy category of any stable model category has an “action” of the stable homotopy category.
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- Foundations of Stable Homotopy Theory , pp. 166 - 233Publisher: Cambridge University PressPrint publication year: 2020