On the fibrewise effective Burnside $\infty$-category

Abstract

Effective Burnside $\infty$-categories are the centerpiece of the $\infty$-categorical approach to equivariant stable homotopy theory. In this étude, we recall the construction of the twisted arrow $\infty$-category, and we give a new proof that it is an $\infty$-category, using an extremely helpful modification of an argument due to Joyal--Tierney. The twisted arrow $\infty$-category is in turn used to construct the effective Burnside $\infty$-category. We employ a variation on this theme to construct a fibrewise effective Burnside $\infty$-category. To show that this constuctionworks fibrewise, we introduce a fragment of a theory of what we call marbled simplicial sets, and we use a yet further modified form of the Joyal--Tierney argument.

11 pages

Cited by in corpus (3)

• Parametrized higher category theory and higher algebra: Exposé IV -- Stability with respect to an orbital $\infty$-category
• Parametrized higher category theory and higher algebra: Exposé I -- Elements of parametrized higher category theory
• Fibrations in $\infty$-category theory