The Day convolution compatibility conjecture for admissible double -categories

Let XΔop\mathcal{X} \to \Delta^{\operatorname{op}} be an admissible double \infty-category and let V\mathcal{V} be a presentably monoidal \infty-category. Corollary 3.?? equips Fun(X1op,V)\operatorname{Fun}(\mathcal{X}_{1}^{\operatorname{op}},\mathcal{V}) with a monoidal structure. The presentable tensor product P(X1)V\mathcal{P}(\mathcal{X}_{1}) \otimes \mathcal{V} also has a monoidal structure induced by the monoidal structure on V\mathcal{V} and the Day convolution on P(X1)\mathcal{P}(\mathcal{X}_{1}). Day convolution compatibility conjecture. These two monoidal structures are equivalent. This predicts that the explicit monoidal structure constructed from the admissible double \infty-category agrees with the standard tensor-product and Day-convolution construction; the source gives no resolution of the expectation.

Sources & referencesView supporting material

Primary source

Rune Haugseng, “-operads via symmetric sequences”, arXiv:1708.09632 (2021).

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