ScalingStacks

0N45

Remark 3.16. The behavior of a homology theory with coefficients in 𝒱\mathcal{V} depends critically on the symmetric monoidal structure chosen on 𝒱\mathcal{V}. For instance, for the symmetric monoidal ∞\infty-category (π–¬π—ˆπ–½π—„,βŠ•)(\m_{k},\oplus) of kk-modules over a fixed field kk with direct sum, a homology theory is forced to be ordinary homology with coefficients in kk; while for (π–¬π—ˆπ–½π—„,βŠ—)(\m_{k},\otimes), a homology theories is typically not a homotopy invariant of manifolds.

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

David Ayala, John Francis

Original source: arXiv:1206.5522v6