ScalingStacks

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Proposition 2.13. Let d≥−1d\geq-1 and let 𝒞\mathcal{C} be an ∞\infty-category. For every X,Y∈𝒞X,Y\in\mathcal{C}, there is a canonical isomorphism α\alpha of simplicial sets rendering the following diagram commutative:

hom𝒞R⁡(X,Y)\textstyle{\hom_{\mathcal{C}}^{R}\left(X,Y\right)\ignorespaces\ignorespaces\ignorespaces\ignorespaces\ignorespaces\ignorespaces\ignorespaces\ignorespaces}β\scriptstyle{\beta}γ\scriptstyle{\gamma}homhd​𝒞R⁡(θd​(X),θd​(Y))\textstyle{\hom_{h_{d}\mathcal{C}}^{R}\left(\theta_{d}\left(X\right),\theta_{d}\left(Y\right)\right)\ignorespaces\ignorespaces\ignorespaces\ignorespaces}α\scriptstyle{\alpha}∼\scriptstyle{\sim}hd−1​hom𝒞R⁡(X,Y),\textstyle{h_{d-1}\hom_{\mathcal{C}}^{R}\left(X,Y\right),}

where β\beta and γ\gamma are the obvious maps.

Original mathematics by the credited authors. Source collection and HTML conversion remain in progress.

Tomer M. Schlank, Lior Yanovski

Original source: arXiv:1902.04061v1

Original source · 1902.04061v1