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math.AT2022
Functor calculus via non-cubes
Robin Stoll
We study versions of Goodwillie's calculus of functors for indexing diagrams other than cubes. We in particular construct universal excisive approximations for a larger class of di…
math.AT2022★ 4 cited
The stable cohomology of self-equivalences of connected sums of products of spheres
Robin Stoll
We identify the cohomology of the stable classifying space of homotopy automorphisms (relative to an embedded disk) of connected sums of , where $3 \le k < l \le 2k…
math.QA2022
Modular operads as modules over the Brauer properad
Robin Stoll
We show that modular operads are equivalent to modules over a certain simple properad which we call the Brauer properad. Furthermore, we show that, in this setting, the Feynman tra…